From owner-freebsd-current@FreeBSD.ORG Wed Aug 2 22:02:49 2006 Return-Path: X-Original-To: freebsd-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 3772F16A4DD for ; Wed, 2 Aug 2006 22:02:49 +0000 (UTC) (envelope-from deischen@freebsd.org) Received: from mail.ntplx.net (mail.ntplx.net [204.213.176.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id C0EE843D45 for ; Wed, 2 Aug 2006 22:02:48 +0000 (GMT) (envelope-from deischen@freebsd.org) Received: from sea.ntplx.net (sea.ntplx.net [204.213.176.11]) by mail.ntplx.net (8.13.7/8.13.7/NETPLEX) with ESMTP id k72M2lKl016198; Wed, 2 Aug 2006 18:02:47 -0400 (EDT) Date: Wed, 2 Aug 2006 18:02:47 -0400 (EDT) From: Daniel Eischen X-X-Sender: eischen@sea.ntplx.net To: Kip Macy In-Reply-To: <20060802141115.D71770@demos.bsdclusters.com> Message-ID: References: <1154527524.93666.22.camel@tobias.home.web-wahnsinn.de> <20060802194817.GA53062@what-creek.com> <20060802135246.J66851@demos.bsdclusters.com> <20060802141115.D71770@demos.bsdclusters.com> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed X-Virus-Scanned: by AMaViS and Clam AntiVirus (mail.ntplx.net) Cc: freebsd-current@freebsd.org, John Birrell , Tobias Gro?er Subject: Re: DTRACE build failure (/usr/obj/usr/src/tmp/usr/bin/ld: cannot find -lpthread) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Daniel Eischen 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 22:02:49 -0000 On Wed, 2 Aug 2006, Kip Macy wrote: > I described it previously. Signals won't always be sent to the right > process, i.e. running a process under GDB the debuggee will sometimes > get the SIGTRAP instead of GDB. When restarting mysql, mysql-server > becomes unkillable. Removing KSE (bike_sched et al.) makes the problem > go away. That sounds more like a bug with gdb/libthread_db. It also doesn't sound like a major bug either, like "signals are broken with KSE" makes it sound. > It is trivial to hit on sun4v. However, I've seen it (or a problem with > similar symptoms) on x86 using NetApp's development simulator which > makes very heavy use of signals. I believe NetApp ended up giving up on > using FreeBSD for running their simulator as this problem made FreeBSD a > non-starter for them. I no longer work for NetApp so I don't have access > to the sources for the simulator any more, so I don't know if bike_sched > fixes that problem for them or not. > > -Kip > > > On Wed, 2 Aug 2006, Daniel Eischen wrote: > >> On Wed, 2 Aug 2006, Kip Macy wrote: >> >>> sun4u is a dead architecture. Signals are broken with KSE on a >>> tightly coupled SMP so sun4v doesn't even have KSE in the tree. >> >> On every platform or on sparc64? I am unaware of any signal >> problems in i386. >> >>> Unless someone steps up to fix KSE "will not work" is more correct. >> >> Please clarify. >> >> -- >> DE >> _______________________________________________ -- DE