From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Wed, 12 Sep 2001 23:44:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Wed, 12 Sep 2001 23:44:20 -0400 Received: from static24-72-34-179.reverse.accesscomm.ca ([24.72.34.179]:15824 "HELO zed.dlitz.net") by vger.kernel.org with SMTP id ; Wed, 12 Sep 2001 23:44:10 -0400 Date: Wed, 12 Sep 2001 21:44:30 -0600 From: "Dwayne C. Litzenberger" To: Jonathan Morton Cc: Roberto Jung Drebes , linux-kernel@vger.kernel.org Subject: Re: [GOLDMINE!!!] Athlon optimisation bug (was Re: Duron kernel crash) Message-ID: <20010912214430.A2866@zed.dlitz.net> In-Reply-To: Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="AhhlLboLdkugWU4S" Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.20i X-Homepage: http://www.dlitz.net/ X-Spam-Policy-URL: http://www.dlitz.net/go/spamoff.shtml X-PGP-Public-Key-URL: http://www.dlitz.net/gpgkey2.asc X-PGP-ID: 0xE272C3C3 X-PGP-Fingerprint: 9413 0BD2 1030 070E 301E 594F F998 B6D8 E272 C3C3 X-Operating-System: Debian testing/unstable GNU/Linux zed 2.4.8 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --AhhlLboLdkugWU4S Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Sep 11, 2001 at 12:21:22PM +0100, Jonathan Morton wrote: > >Today I updated the BIOS of my motherboard, a ABIT KT7A (VIA Apollo KT13= 3A > >chipset). The kernel I had (2.4.9) started crashing on boot with an > >invalid page fault, usually right after starting init. I tryed a i686 > >kernel and noticed it works OK, so I recompiled my crashy kernel only > >switching the processor type and it also worked. changed it back to > >Athlon/K7/Duron and it starts crashing. > > > >Anyone else experiencing this? >=20 > BINGO! >=20 > This problem is known about, but this is the first report we've had=20 > of it on a Duron (as opposed to Athlon), and you've successfully=20 > tracked it down to the updated BIOS. >=20 > We need the versions of your old and new BIOSes, as accurately as you=20 > can make it. I don't have time to do a full oops trace right now (I've never done one before, so it would take some time, and I am somewhat busy with school work right now), but I will confirm that I have an AMD Thunderbird 1200MHz with a KT133A board, and it works fine with CONFIG_MK6 set, but CONFIG_MK7 craps out with an oops soon after init starts. I'm running kernel 2.4.8 (including the stock emu10k1 drivers) patched with the Debian FreeS/WAN patch (though those are modules, and are not actually being loaded). My BIOS code is the newest available from my motherboard manufacturer (the board is a Future Power FP-KT133A, whose specs are at: http://www.futurepowerusa.com/products/FP-kt133.htm ) I suppose if anyone's really interested, I can allocate some time to report more on this problem. Ask away! Anyway, here's my current /proc/cpuinfo: processor : 0 vendor_id : AuthenticAMD cpu family : 6 model : 4 model name : AMD Athlon(tm) Processor stepping : 2 cpu MHz : 1200.017 cache size : 256 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu vme de pse tsc msr pae mce cx8 sep mtrr pge mca cmov = pat pse36 mmx fxsr syscall mmxext 3dnowext 3dnow bogomips : 2392.06 And lspci -vv: 00:00.0 Host bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133] (rev = 03) Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Steppi= ng- SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=3Dmedium >TAbort- SERR- Capabilities: [c0] Power Management version 2 Flags: PMEClk- DSI- D1- D2- AuxCurrent=3D0mA PME(D0-,D1-,D2-,D3hot-,D3col= d-) Status: D0 PME-Enable- DSel=3D0 DScale=3D0 PME- 00:01.0 PCI bridge: VIA Technologies, Inc. VT8363/8365 [KT133/KM133 AGP] (p= rog-if 00 [Normal decode]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Steppi= ng- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=3Dmedium >TAbort- SERR- Reset- FastB2B- Capabilities: [80] Power Management version 2 Flags: PMEClk- DSI- D1+ D2- AuxCurrent=3D0mA PME(D0-,D1-,D2-,D3hot-,D3col= d-) Status: D0 PME-Enable- DSel=3D0 DScale=3D0 PME- 00:07.0 ISA bridge: VIA Technologies, Inc. VT82C686 [Apollo Super South] (r= ev 40) Subsystem: VIA Technologies, Inc. VT82C686/A PCI to ISA Bridge Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Steppi= ng+ SERR- FastB2B- Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=3Dmedium >TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- TAbort- SERR- [disabled] [size=3D64K] 01:00.0 VGA compatible controller: nVidia Corporation Vanta [NV6] (rev 15) = (prog-if 00 [VGA]) Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Steppi= ng- SERR- FastB2B- Status: Cap+ 66Mhz+ UDF- FastB2B+ ParErr- DEVSEL=3Dmedium >TAbort- SERR- [disabled] [size=3D64K] Capabilities: [60] Power Management version 1 Flags: PMEClk- DSI- D1- D2- AuxCurrent=3D0mA PME(D0-,D1-,D2-,D3hot-,D3col= d-) Status: D0 PME-Enable- DSel=3D0 DScale=3D0 PME- Capabilities: [44] AGP version 2.0 Status: RQ=3D31 SBA- 64bit- FW- Rate=3Dx1,x2 Command: RQ=3D0 SBA- AGP- 64bit- FW- Rate=3D --=20 Dwayne C. Litzenberger - dlitz@dlitz.net --AhhlLboLdkugWU4S Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.6 (GNU/Linux) Comment: For info see http://www.gnupg.org iEYEARECAAYFAjugK54ACgkQ+Zi22OJyw8PUkACePan1Z6sL6o+JgMM99mpbjMY7 Xz0AnReVtgG0inekpHFwY8pnUUyK5G93 =BEwa -----END PGP SIGNATURE----- --AhhlLboLdkugWU4S--