From mboxrd@z Thu Jan 1 00:00:00 1970 From: Helge Deller Subject: Re: Out of order unwind entry warning Date: Sat, 31 Oct 2009 08:39:43 +0100 Message-ID: <4AEBE9BF.6070403@gmx.de> References: <4AEB6CEB.6010205@gmx.de> <20091031004132.CA8C34FE3@hiauly1.hia.nrc.ca> <20091031021925.GA425@hiauly1.hia.nrc.ca> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linux-parisc@vger.kernel.org, carlos@systemhalted.org, randolph@tausq.org To: John David Anglin Return-path: In-Reply-To: <20091031021925.GA425@hiauly1.hia.nrc.ca> List-ID: List-Id: linux-parisc.vger.kernel.org On 10/31/2009 03:19 AM, John David Anglin wrote: > On Fri, 30 Oct 2009, John David Anglin wrote: > >> There seems to a problem with readelf -u on 32-bit kernels. The >> address ranges are wrong. The segment offset doesn't seem to be >> being handled correctly. > > readelf -u uses the base address of the segment containing the > .PARISC.unwind section. On 64-bit kernels, the .PARISC.unwind > section is in the same segment as the .text section, so the > addresses print are correct. However, on recent 32-bit kernels, > this is not the case: > > Section to Segment mapping: > Segment Sections... > 00 .text .rodata .init.rodata __bug_table .pci_fixup .builtin_fw __ksymtab __ksymtab_gpl __kcrctab __kcrctab_gpl __ksymtab_strings __param > 01 __ex_table .PARISC.unwind .data.read_mostly .data .got .data.vmpages .bss > 02 .data.init_task .init.text .init.data .init.setup .initcall.init .con_initcall.init .exit.text > 03 > > .PARISC.unwind is readonly, so it shouldn't be in a W segment. apply the patch in http://patchwork.kernel.org/patch/55797/ before testing. .PARISC.unwind is then still in a RW segment, but at least you will get more reliable output. Helge