From owner-freebsd-current@FreeBSD.ORG Wed Aug 2 23:04:07 2006 Return-Path: X-Original-To: current@freebsd.org Delivered-To: freebsd-current@FreeBSD.ORG Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CBC7116A4E5; Wed, 2 Aug 2006 23:04:07 +0000 (UTC) (envelope-from marcel@xcllnt.net) Received: from ns1.xcllnt.net (209-128-86-226.BAYAREA.NET [209.128.86.226]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8C14143D46; Wed, 2 Aug 2006 23:04:07 +0000 (GMT) (envelope-from marcel@xcllnt.net) Received: from [192.168.5.252] (dhcp52.wlan.xcllnt.net [192.168.5.252]) by ns1.xcllnt.net (8.13.6/8.13.6) with ESMTP id k72N46WC019080; Wed, 2 Aug 2006 16:04:06 -0700 (PDT) (envelope-from marcel@xcllnt.net) In-Reply-To: <44D12AC0.90009@sippysoft.com> References: <44D12AC0.90009@sippysoft.com> Mime-Version: 1.0 (Apple Message framework v752.2) Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed Message-Id: <0C6ADBC1-E3DF-47D1-AA77-EA9BD14E059F@xcllnt.net> Content-Transfer-Encoding: 7bit From: Marcel Moolenaar Date: Wed, 2 Aug 2006 16:03:55 -0700 To: Maxim Sobolev X-Mailer: Apple Mail (2.752.2) Cc: "current@freebsd.org" , freebsd-ppc@freebsd.org Subject: Re: Looks like threading is b0rken on FreeBSD/powerpc X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 02 Aug 2006 23:04:07 -0000 On Aug 2, 2006, at 3:44 PM, Maxim Sobolev wrote: > Hi, > > Apparently threading is b0rken on the FreeBSD/powerpc - csup(8) > dumps core with seg 11. The same csup(8) version compiled on 6.0 > works just fine on the same 7-CURRENT kernel. > > Unfortunately lack of gdb doesn't allow to extract backtrace out of > core file. > > Any ideas? I can't say anything about the threading bug, but I can say this: I'm working on gdb-6.5, which involves implementing debugger support for threaded applications other than i386 and amd64. I'd like it to include PowerPC support as well, but that requires some additional work because there's no PowerPC support yet. I could use some help with the ABI details. If the problem of no debugger is addressed, you will be able to look into the threading bug and maybe fix it without much pain... FYI, -- Marcel Moolenaar USPA: A-39004 marcel@xcllnt.net