From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 12578 invoked by alias); 17 Aug 2012 10:54:02 -0000 Received: (qmail 12566 invoked by uid 22791); 17 Aug 2012 10:54:01 -0000 X-SWARE-Spam-Status: No, hits=-2.2 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED,SPF_FAIL X-Spam-Check-By: sourceware.org Received: from gbenson.demon.co.uk (HELO gbenson.demon.co.uk) (80.177.220.214) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Fri, 17 Aug 2012 10:53:46 +0000 Date: Fri, 17 Aug 2012 10:54:00 -0000 From: Gary Benson To: gdb-patches@sourceware.org Cc: Jan Kratochvil Subject: Re: [RFA 4/4 take 2] Improved linker-debugger interface Message-ID: <20120817105344.GB2635@redhat.com> Mail-Followup-To: gdb-patches@sourceware.org, Jan Kratochvil References: <20120719110518.GE16185@redhat.com> <20120815172346.GA5696@host2.jankratochvil.net> <20120815174546.GA7270@host2.jankratochvil.net> <20120816155207.GD3467@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20120816155207.GD3467@redhat.com> X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2012-08/txt/msg00478.txt.bz2 Gary Benson wrote: > Jan Kratochvil wrote: > > On Wed, 15 Aug 2012 19:23:46 +0200, Jan Kratochvil wrote: > > > (3) > > > There is some issue we already discussed off-list, in some cases > > > (Fedora Rawhide x86_64 with Fedora patched GDB) it breaks on > > > FAIL: gdb.base/break-dlmopen.exp: info sharedlibrary #5 > > > > reproduced it also with FSF GDB HEAD with the patch below. > > > > Apparently the address 0x6020a0 is already freed/invalid that > > time, I guess it is more clear to you: > > > > > namespace_update_full(lmid=0x1,debug_base=0x7ffff7ffd0f8,is_initial_ns=0 > > > svr4_read_so_list(lm=0x6020a0,prev_lm=0x0) > > > lm=0x6020a0={next=0x602670,prev=0x0} > > > lm=0x602670={next=0x0,prev=0x0} > > > warning: Corrupted shared library list: 0x6020a0 != 0x0 > > This is a glibc issue. I've mailed a patch to libc-alpha: > http://sourceware.org/ml/libc-alpha/2012-08/msg00366.html The fix has been accepted and committed: http://sourceware.org/ml/libc-alpha/2012-08/msg00385.html Cheers, Gary -- http://gbenson.net/