Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 13 Apr 2001 09:48:29 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 13 Apr 2001 09:48:19 -0400 Received: from draal.physics.wisc.edu ([128.104.137.82]:64516 "EHLO draal.physics.wisc.edu") by vger.kernel.org with ESMTP id ; Fri, 13 Apr 2001 09:48:16 -0400 Date: Fri, 13 Apr 2001 08:48:05 -0500 From: Bob McElrath To: linux-kernel@vger.kernel.org Subject: Re: Alpha "process table hang" Message-ID: <20010413084805.B3118@draal.physics.wisc.edu> In-Reply-To: <20010411125731.B6472@draal.physics.wisc.edu> Mime-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="PmA2V3Z32TCmWXqI" Content-Disposition: inline User-Agent: Mutt/1.2i In-Reply-To: ; from alan@lxorguk.ukuu.org.uk on Wed, Apr 11, 2001 at 07:05:34PM +0100 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org --PmA2V3Z32TCmWXqI Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable Alan Cox [alan@lxorguk.ukuu.org.uk] wrote: > > (But since the X server shouldn't have the ability to corrupt the > > kernel's process list, there has to be a problem in the kernel > > somewhere) >=20 > The X server has enough priviledge to corrupt anything. Its unlikely to a= nd > I do agree they two are likely to be unrelated. Well, nix that idea. I just fell back to 2.2.19, and I see neither the X crash nor the process-table-hang crash (which rules out hardware problems, thankfully). The X crash is also kernel related, it seems. I'm using XFree86 4.0.3 with the mga driver. It hangs in mga_storm.c on a line that looks like: while (MGAISBUSY()) {} where: #define MGAISBUSY() (INREG8(MGAREG_Status + 2) & 0x01) Killing and restarting X causes it to immediately hang in the same place. (I have to reboot to recover the console) This would seem to be PCI related. Have any significant PCI code changes been made to the alpha architecture, especially pyxis or cabriolet code? I see that arch/alpha/kernel has been totally rearranged, but since this doesn't crash in kernel code, I have no idea how to debug it. Thanks, -- Bob Bob McElrath (rsmcelrath@students.wisc.edu)=20 Univ. of Wisconsin at Madison, Department of Physics --PmA2V3Z32TCmWXqI Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.0.1 (GNU/Linux) Comment: For info see http://www.gnupg.org iEYEARECAAYFAjrXA5UACgkQjwioWRGe9K0tCQCeK6MCEm/xXDImzzPSh6rIOgK6 1f0AoL4ATebOPiHRi8QvHpZLpOlSBBDs =hfMu -----END PGP SIGNATURE----- --PmA2V3Z32TCmWXqI-- - 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/