Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Thu, 26 Dec 2002 18:23:51 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Thu, 26 Dec 2002 18:23:51 -0500 Received: from smtp04.iddeo.es ([62.81.186.14]:3014 "EHLO smtp04.retemail.es") by vger.kernel.org with ESMTP id ; Thu, 26 Dec 2002 18:23:49 -0500 Date: Thu, 26 Dec 2002 23:46:56 +0100 From: =?iso-8859-1?Q?J=2EA=2E_Magall=F3n?= To: Lista Linux-Kernel Subject: 2.4.21-pre on SMP-HT exports bad AT_PLATFORM Message-ID: <20021226224656.GC1563@werewolf.able.es> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="zx4FCpZtqtKETZ7O" Content-Disposition: inline Content-Transfer-Encoding: 8bit X-Mailer: Balsa 2.0.4 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 6797 Lines: 137 --zx4FCpZtqtKETZ7O Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit Hi all... Continuing with the glibc-2.3.1 saga, I have tested 2.4.21-pre2. It also fails. glibc can not get a correct AT_PLATFORM when the kernel is run on an hyperthreaded smp box. I have run this on the box (dual P4@1.8GHz). Highmem does not matter. Just HT matters. If I sun the SMP kernel with HT active, it glibc fails to detect AT_PLATFORM. If I disable HT, from the bios or with 'noht' boot option, the platform is correctly detected. Something does not follow the rules in binfmt_elf.c when there are siblings (not real CPUs) in the game. Or there is gcc-3.2.1 to blame. Test script: #!/bin/bash #log=$(uname -r).txt log=log.txt exec > $log 2>&1 echo ===== uname -a uname -a echo echo ===== uname -m uname -m echo echo ===== ./ld.so ./ld.so echo echo ===== LD_LIBRARY_PATH="" LD_DEBUG=libs /bin/true rm -f /etc/ld.so.cache LD_LIBRARY_PATH="" LD_DEBUG=libs /bin/true echo ldconfig ld.so is a modified one to print AT_PLATFORM, by Gwenole@mandrakesoft. The loader used for the /bin/true test is the standard one. Results for 2.4.21-pre2 are attached. All are smp kernels, 'ht' means ht active, 'noht-bios' is ht diabled in the bios and 'noht-soft' is ht disabled with 'noht'. Any ideas ? -- J.A. Magallon \ Software is like sex: werewolf.able.es \ It's better when it's free Mandrake Linux release 9.1 (Cooker) for i586 Linux 2.4.21-pre2-jam1 (gcc 3.2.1 (Mandrake Linux 9.1 3.2.1-2mdk)) --zx4FCpZtqtKETZ7O Content-Type: application/x-bzip Content-Disposition: attachment; filename="2.4.21-pre2-ht.txt.bz2" Content-Transfer-Encoding: base64 QlpoOTFBWSZTWQaRzKQAAXf/gCA0BABI5/f7P+feav//3/BQBCIsTWLZQFAlEagVPyp/op6a aNUeo02hqep6jTTaelD0Q9TxNqgBoQ0NRkmJooMno1NAyGCYEwEDJgkSBNJkam0pPDTRTRiZ NA9Q0aDQDCeQ4yZMmIxMAJkwTIAaMIwBDAcZMmTEYmAEyYJkANGEYAhguC+4QGVCm34N/OX1 w0+EGmeosoOEx/ZmFUjDy8YZNshxpVf1O59wIf2vzpWoUJZUiSZ8jggXZSClrpt2nFhZS7NR Q/gLmbRUbV1+uKPmuJrnt1nRmZ7Qm7OFmFq+zpkNmZ9Xi9yXGxEZm6BhIK0XgzMV2slc/Gw8 GtY1JNUgHG8ZCvjcszONAaHLIWrbMzIIESKRsDJrtPQuM1cGnSei4IlZRXR/4tCVGfay5EWw F1zfANZjYUPid4XFjojnhM+YPH1btzdqLkz8zVYqKYuo1QdPrz2iDLL6LA0iDz/rFee/pth7 a1flnIiIIiE4bbb9C1e5w7qJMbgcOIbG2JNvaqAR+P2JIhJH3vZ6r1lAhwkjdGE1KPzhBaPc S7kkfQdlcUketJHp7b9uZZ8EFctj080JaI7Q7XAaXgWh0/jqv0clN/zEl++87OdcJEepw5PO KsQIam5UsJGeDnFUaQ8qSkY41z17KcdUVGO8filP5FHDPMNeKuwiHCCUFwwzKRRNRedbK5Qm 4IqapMqYGWIrXR7VDWbOgVL264ySQkXc+9BLwc2hxKqh08MAkTXf4VRIkFof85fc0C7mI//0 KNV7RQLM24CNeqf9lY4cyi5F5s66GEkKbq4YMtIhNy9SHFZtRET5zVuNR7HrM8GSOkhc8oOi 0SdcpTVJAHKCcMHA0iolhGwc/pT/IxtEogu+2JFtqnogRGJiSW4plZCBEajBkkemmpyCdMQl NlqgrtkhGsz5bCwdbEcmsWpkIXKRLFCzNExz2KREoBOEotKF42Mc4ximla7QQbmLXhzFbDGX rNJd9jywJ8L32W3NykUR75yzvQMfIDDNmGl9CIwYkKuxD7S9Jui5+ebZPNy6Lv/Hncuxg2If XNID12XBwzEcu+MizRB0OSWc92CeEkFKKIarx6YkczK5iU6iU/JpfyxPCJsnRjhQW42qyjCB xNtiCjZafip4ydKVLDJjIZl0miGhcwYnJrV70LqHVrsxhwdhsfCNTzj5SNL9GZkp6JTmJZb6 JN62A+RC4cUTCrPmvqSUnJq5nWiFhqsM7Kaui6hKRu5ZSwY0Nk2R7oIWesGfd1G8BbQzlscS T3CIpvHsgAPcACoISFBnXznCgfiF0vggYlIOxoYMkRgGUJDYFrTwLUVX5MM1JK+zqYYaJUNG QwsA/FkLE7NvHM6dLyLLbvtSRPechKouL0wyYT3TQcdirqZnxF3JFOFCQBpHMpA= --zx4FCpZtqtKETZ7O Content-Type: application/x-bzip Content-Disposition: attachment; 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