From owner-cvs-all@FreeBSD.ORG Mon Aug 20 18:56:47 2007 Return-Path: Delivered-To: cvs-all@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 231E216A419; Mon, 20 Aug 2007 18:56:47 +0000 (UTC) (envelope-from dillon@apollo.backplane.com) Received: from apollo.backplane.com (apollo.backplane.com [216.240.41.2]) by mx1.freebsd.org (Postfix) with ESMTP id E6E6D13C4B6; Mon, 20 Aug 2007 18:56:46 +0000 (UTC) (envelope-from dillon@apollo.backplane.com) Received: from apollo.backplane.com (localhost [127.0.0.1]) by apollo.backplane.com (8.14.1/8.13.7) with ESMTP id l7KIgB8f040031; Mon, 20 Aug 2007 11:42:11 -0700 (PDT) Received: (from dillon@localhost) by apollo.backplane.com (8.14.1/8.13.4/Submit) id l7KIgAbd040030; Mon, 20 Aug 2007 11:42:10 -0700 (PDT) Date: Mon, 20 Aug 2007 11:42:10 -0700 (PDT) From: Matthew Dillon Message-Id: <200708201842.l7KIgAbd040030@apollo.backplane.com> To: Alfred Perlstein References: <200708160526.l7G5Qg0b008022@repoman.freebsd.org> <46C4FD02.3090708@freebsd.org> <200708182118.37998.tijl@ulyssis.org> <20070818204223.D1234@fledge.watson.org> <46C7A9A4.5090404@samsco.org> <20070819095302.D66918@fledge.watson.org> <222044094-1187603330-cardhu_decombobulator_blackberry.rim.net-1638751523-@bxe027.bisx.prod.on.blackberry> <46C9AE64.50705@samsco.org> <20070820182905.GH87451@elvis.mu.org> X-Mailman-Approved-At: Mon, 20 Aug 2007 19:51:03 +0000 Cc: wine-freebsd@hub.org, Kris Moore , Scott Long , src-committers@freebsd.org, cvs-src@freebsd.org, cvs-all@freebsd.org, Daniel Eischen , Robert Watson , David Xu , Tijl Coosemans , Xin LI Subject: Re: cvs commit: src/sys/kern kern_thr.c syscalls.master src/sys/sys X-BeenThere: cvs-all@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: CVS commit messages for the entire tree List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 20 Aug 2007 18:56:47 -0000 We have a lwp_kill() system call that sends a signal to a thread within a process. It turns out to be fairly necessary for any sort of heavily integrated multi-threaded work. In our case we need it to be able to issue IPIs (aka SIGUSR1) to cpus within a SMP virtual kernel. int lwp_kill(pid_t pid, lwpid_t tid, int sig); -Matt