From owner-freebsd-bugs@FreeBSD.ORG Fri Dec 2 02:30:06 2005 Return-Path: X-Original-To: freebsd-bugs@hub.freebsd.org Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9C52016A422 for ; Fri, 2 Dec 2005 02:30:06 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [216.136.204.21]) by mx1.FreeBSD.org (Postfix) with ESMTP id A9F9543D45 for ; Fri, 2 Dec 2005 02:30:04 +0000 (GMT) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.13.3/8.13.3) with ESMTP id jB22U3Y8027688 for ; Fri, 2 Dec 2005 02:30:03 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.13.3/8.13.1/Submit) id jB22U3Aj027687; Fri, 2 Dec 2005 02:30:03 GMT (envelope-from gnats) Resent-Date: Fri, 2 Dec 2005 02:30:03 GMT Resent-Message-Id: <200512020230.jB22U3Aj027687@freefall.freebsd.org> Resent-From: FreeBSD-gnats-submit@FreeBSD.org (GNATS Filer) Resent-To: freebsd-bugs@FreeBSD.org Resent-Reply-To: FreeBSD-gnats-submit@FreeBSD.org, Jacques Garrigue Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 5D5BD16A44E for ; Fri, 2 Dec 2005 02:28:50 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [216.136.204.117]) by mx1.FreeBSD.org (Postfix) with ESMTP id A210F43D5E for ; Fri, 2 Dec 2005 02:28:49 +0000 (GMT) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.13.1/8.13.1) with ESMTP id jB22SnWu047282 for ; Fri, 2 Dec 2005 02:28:49 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.13.1/8.13.1/Submit) id jB22SnsY047281; Fri, 2 Dec 2005 02:28:49 GMT (envelope-from nobody) Message-Id: <200512020228.jB22SnsY047281@www.freebsd.org> Date: Fri, 2 Dec 2005 02:28:49 GMT From: Jacques Garrigue To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-2.3 Cc: Subject: kern/89825: [em] Thinkpad T42 hangs when going to sleep when em is in kernel (regression) X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 02 Dec 2005 02:30:06 -0000 >Number: 89825 >Category: kern >Synopsis: [em] Thinkpad T42 hangs when going to sleep when em is in kernel (regression) >Confidential: no >Severity: serious >Priority: medium >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Fri Dec 02 02:30:02 GMT 2005 >Closed-Date: >Last-Modified: >Originator: Jacques Garrigue >Release: 6.0-RELEASE >Organization: Nagoya University >Environment: FreeBSD tet4.kurims.kyoto-u.ac.jp 6.0-RELEASE FreeBSD 6.0-RELEASE #1: Fri Dec 2 10:11:23 JST 2005 garrigue@tet4.kurims.kyoto-u.ac.jp:/usr/src/sys/i386/compile/T42 i386 >Description: The problem occurs on a Thinkpad T42, with Radeon M10 visual, Intel(R) PRO/1000 Network (em), Atheros 5212 wireless (ath). When going to sleep under X11, using acpiconf -s3, the machine freezes. The problem can be mitigated by setting hw.syscons.sc_no_suspend_vtswitch to 1, but I still observe freezes when going to sleep while accessing the disk. The problem disappears completely when removing em from the kernel (no need for sc_no_suspend_vtswitch.) It reappears when loading it as a kernel module. There is no such problem using the generic kernel from 6.0-RC1 (which includes em) The problem is still there in STABLE as of 2005-12-01. >How-To-Repeat: On a Thinkpad T42, go to sleep under X11 without setting sc_no_suspend_vtswitch. This might occur on other laptops using the em driver. >Fix: workaround: remove em from the kernel. >Release-Note: >Audit-Trail: >Unformatted: