From owner-freebsd-bugs@FreeBSD.ORG Sun Feb 15 17:50:03 2009 Return-Path: Delivered-To: freebsd-bugs@hub.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 085DC10656CE for ; Sun, 15 Feb 2009 17:50:03 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:4f8:fff6::28]) by mx1.freebsd.org (Postfix) with ESMTP id D885D8FC19 for ; Sun, 15 Feb 2009 17:50:02 +0000 (UTC) (envelope-from gnats@FreeBSD.org) Received: from freefall.freebsd.org (gnats@localhost [127.0.0.1]) by freefall.freebsd.org (8.14.3/8.14.3) with ESMTP id n1FHo2PI056310 for ; Sun, 15 Feb 2009 17:50:02 GMT (envelope-from gnats@freefall.freebsd.org) Received: (from gnats@localhost) by freefall.freebsd.org (8.14.3/8.14.3/Submit) id n1FHo2or056309; Sun, 15 Feb 2009 17:50:02 GMT (envelope-from gnats) Resent-Date: Sun, 15 Feb 2009 17:50:02 GMT Resent-Message-Id: <200902151750.n1FHo2or056309@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, Rene Ladan Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 1F0AD106564A for ; Sun, 15 Feb 2009 17:48:40 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (www.freebsd.org [IPv6:2001:4f8:fff6::21]) by mx1.freebsd.org (Postfix) with ESMTP id 0DE768FC0C for ; Sun, 15 Feb 2009 17:48:40 +0000 (UTC) (envelope-from nobody@FreeBSD.org) Received: from www.freebsd.org (localhost [127.0.0.1]) by www.freebsd.org (8.14.3/8.14.3) with ESMTP id n1FHmd2w087099 for ; Sun, 15 Feb 2009 17:48:39 GMT (envelope-from nobody@www.freebsd.org) Received: (from nobody@localhost) by www.freebsd.org (8.14.3/8.14.3/Submit) id n1FHmdhW087098; Sun, 15 Feb 2009 17:48:39 GMT (envelope-from nobody) Message-Id: <200902151748.n1FHmdhW087098@www.freebsd.org> Date: Sun, 15 Feb 2009 17:48:39 GMT From: Rene Ladan To: freebsd-gnats-submit@FreeBSD.org X-Send-Pr-Version: www-3.1 Cc: Subject: kern/131718: [lor] kern_sysctl.c / acpi_video.c 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: Sun, 15 Feb 2009 17:50:03 -0000 >Number: 131718 >Category: kern >Synopsis: [lor] kern_sysctl.c / acpi_video.c >Confidential: no >Severity: non-critical >Priority: low >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Sun Feb 15 17:50:02 UTC 2009 >Closed-Date: >Last-Modified: >Originator: Rene Ladan >Release: 8.0-CURRENT i386 r188644 >Organization: >Environment: FreeBSD eee 8.0-CURRENT FreeBSD 8.0-CURRENT #1 r188644: Sun Feb 15 17:06:01 CET 2009 root@self.rene-ladan.nl:/usr/head/obj/i386/usr/head/src/sys/EEE_HEAD i386 >Description: LOR, seen on Asus EEE 901: lock order reversal: 1st 0xc09b96e4 sysctl lock (sysctl lock) @ /usr/head/src/sys/kern/kern_sysctl.c:1510 2nd 0xc09a4edc ACPI video (ACPI video) @ /usr/head/src/sys/dev/acpica/acpi_video.c:627 KDB: stack backtrace: db_trace_self_wrapper(c0915f2b,e6791aac,c060f6a5,4,c091148e,...) at db_trace_self_wrapper+0x26 kdb_backtrace(4,c091148e,c4117ad0,c4118de8,e6791b08,...) at kdb_backtrace+0x29 _witness_debugger(c0918c84,c09a4edc,c08f008d,c4118de8,c08efce4,...) at _witness_debugger+0x25 witness_checkorder(c09a4edc,9,c08efce4,273,0,...) at witness_checkorder+0x839 _sx_xlock(c09a4edc,0,c08efce4,273,0,...) at _sx_xlock+0x85 acpi_video_vo_active_sysctl(c429ce40,c429d040,0,e6791ba4,e6791ba4,...) at acpi_video_vo_active_sysctl+0x47 sysctl_root(e6791ba4,0,c091388f,5e6,c459cb40,...) at sysctl_root+0x199 userland_sysctl(c459cb40,e6791c10,5,0,bfbfdc90,...) at userland_sysctl+0x115 __sysctl(c459cb40,e6791cf8,18,c0919a9d,c0968730,...) at __sysctl+0x94 syscall(e6791d38) at syscall+0x2a3 Xint0x80_syscall() at Xint0x80_syscall+0x20 --- syscall (202, FreeBSD ELF32, __sysctl), eip = 0x2816ff6f, esp = 0xbfbfdb9c, ebp = 0xbfbfdbc8 --- >How-To-Repeat: boot the Eee 901, running a kernel with options VESA device vga device agp device drm device i195drm device acpi_asus device acpi_video >Fix: >Release-Note: >Audit-Trail: >Unformatted: