From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933214AbXGVX4e (ORCPT ); Sun, 22 Jul 2007 19:56:34 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1759818AbXGVX4Z (ORCPT ); Sun, 22 Jul 2007 19:56:25 -0400 Received: from mx2.suse.de ([195.135.220.15]:41119 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758586AbXGVX4Y (ORCPT ); Sun, 22 Jul 2007 19:56:24 -0400 From: Andi Kleen Organization: SUSE Linux Products GmbH, Nuernberg, GF: Markus Rex, HRB 16746 (AG Nuernberg) To: Andre Noll Subject: vdso.so mislinked by buggy linker was Re: Linus 2.6.23-rc1 Date: Mon, 23 Jul 2007 01:56:20 +0200 User-Agent: KMail/1.9.6 Cc: linux-kernel@vger.kernel.org, Linus Torvalds References: <200707230131.00302.ak@suse.de> <20070722233840.GJ30660@skl-net.de> In-Reply-To: <20070722233840.GJ30660@skl-net.de> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200707230156.20276.ak@suse.de> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Monday 23 July 2007 01:38:40 Andre Noll wrote: [readded linux-kernel, Linus] > [Nr] Name Type Address Offset > Size EntSize Flags Link Info Align > [ 0] NULL 0000000000000000 00000000 > 0000000000000000 0000000000000000 0 0 0 > [ 1] .hash HASH ffffffffff700120 00000120 > 00000000000000b4 0000000000000004 A 2 0 8 > [ 2] .dynsym DYNSYM ffffffffff7001d8 000001d8 > 0000000000000270 0000000000000018 A 3 12 8 > [ 3] .dynstr STRTAB ffffffffff700448 00000448 > 0000000000000059 0000000000000000 A 0 0 1 > [ 4] .gnu.version VERSYM ffffffffff7004a2 000004a2 > 0000000000000034 0000000000000002 A 2 0 2 > [ 5] .gnu.version_d VERDEF ffffffffff7004d8 000004d8 > 0000000000000038 0000000000000000 A 3 2 8 > [ 6] .text PROGBITS ffffffffff700c00 00100bab ^^^^^^^^ > 00000000000002e4 0000000000000000 AX 0 0 64 It puts .text at 1MB. Your vdso file must be huge? It looks like it ignores the -Wl,-z,max-page-size=4096 -Wl,-z,common-page-size=4096 options passed to it. The AMD64 ABI has a 1MB minimum page size, but these options are supposed to disable it. Not sure how to work around this, but having an 1+MB vdso would be incredibly wasteful. What version is it? Perhaps we just drop support for this. I can't think of a workaround currently. -Andi