From owner-freebsd-current@FreeBSD.ORG Tue Feb 27 08:07:35 2007 Return-Path: X-Original-To: freebsd-current@freebsd.org Delivered-To: freebsd-current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id F3A2616A406 for ; Tue, 27 Feb 2007 08:07:34 +0000 (UTC) (envelope-from leafy7382@gmail.com) Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.170]) by mx1.freebsd.org (Postfix) with ESMTP id 8EFE913C441 for ; Tue, 27 Feb 2007 08:07:34 +0000 (UTC) (envelope-from leafy7382@gmail.com) Received: by ug-out-1314.google.com with SMTP id 71so950276ugh for ; Tue, 27 Feb 2007 00:07:30 -0800 (PST) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=CUvhXVGddwz5TJCSZCCHQ8arlSlUcj0BS1/gWelswufb9lIIbcvZQ2pEbfU0RBoAriydDtR3MCTgUNWRRFd7XaSczPqiYE++OCL+EvNm+8AVFLThkydtNAYnUt5C+rGcpw7oSCAVpGvtIG9K2ELblQGNpg5Nx5CZzGG6JB26Eok= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=dXKZOqnLMOwJSLZZQQrsC6nnBJLtPikSGpGSblbV96um9qeHYBOszeyPVsmX5RN+hepf9jEUBmDNaH/+nGYw/4bCrsIbmfR53r708I5kSIv7GzOGkJpWjrI4Qf2b0zPSiZSl+asJZc2rKY+pRLg3PxlKeWY7O6mBbLPOuy+E3l0= Received: by 10.78.166.7 with SMTP id o7mr550098hue.1172563649480; Tue, 27 Feb 2007 00:07:29 -0800 (PST) Received: by 10.78.136.3 with HTTP; Tue, 27 Feb 2007 00:07:29 -0800 (PST) Message-ID: Date: Tue, 27 Feb 2007 16:07:29 +0800 From: "Jiawei Ye" To: freebsd-current MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Content-Disposition: inline Subject: Processes stuck in *unp_m after recent uipc changes 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: Tue, 27 Feb 2007 08:07:35 -0000 With the latest uipc locking changes, I experienced a hard lockup on my -current machine. Many processes got stuck in *unp_m state and ctrl-alt-delete at the console cannot properly restart the machine and I had to hard-reset (no coredump available). Is there anyway to diagnose this? Jiawei -- "If it looks like a duck, walks like a duck, and quacks like a duck, then to the end user it's a duck, and end users have made it pretty clear they want a duck; whether the duck drinks hot chocolate or coffee is irrelevant."