From owner-freebsd-current@FreeBSD.ORG Tue Oct 24 18:17:03 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 6666516A40F for ; Tue, 24 Oct 2006 18:17:03 +0000 (UTC) (envelope-from michiel@boland.org) Received: from neerbosch.nijmegen.internl.net (neerbosch.nijmegen.internl.net [217.149.193.38]) by mx1.FreeBSD.org (Postfix) with ESMTP id BAA7643D46 for ; Tue, 24 Oct 2006 18:17:02 +0000 (GMT) (envelope-from michiel@boland.org) Received: from brakkenstein.nijmegen.internl.net by neerbosch.nijmegen.internl.net via brakkenstein.nijmegen.internl.net [217.149.193.41] with ESMTP for id k9OIH0Zu002061 (8.13.4/1.4); Tue, 24 Oct 2006 20:17:00 +0200 (MEST) Received: from localhost by brakkenstein.nijmegen.internl.net via mboland@localhost with ESMTP for id k9OIH0cU017682 (8.13.2/2.02); Tue, 24 Oct 2006 20:17:00 +0200 (MEST) X-Authentication-Warning: brakkenstein.nijmegen.internl.net: mboland owned process doing -bs Date: Tue, 24 Oct 2006 20:17:00 +0200 (MEST) From: Michiel Boland To: freebsd-current@freebsd.org Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Subject: panic in ttwakeup 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, 24 Oct 2006 18:17:03 -0000 Hi. Got this panic while fooling around with jails. Can't remember what I did unfortunately. kgdb barfed at the frame at address 0 in the backtrace command so I couldn't extract any more useful data except for the following. I guess this is related to kern/103520 kernel is from Mon Oct 23 10:42:06 CEST 2006 Fatal trap 12: page fault while in kernel mode fault virtual address = 0x0 fault code = supervisor read, page not present instruction pointer = 0x20:0x0 stack pointer = 0x28:0xd59f892c frame pointer = 0x28:0xd59f8940 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 31026 (script) trap number = 12 panic: page fault KDB: stack backtrace: kdb_backtrace(100,c2816bd0,28,d59f88ec,c,...) at kdb_backtrace+0x29 panic(c0642f3f,c06642d6,0,0,fffff,...) at panic+0xa8 trap_fatal(d59f88ec,0,c2816bd0,c280f71c,0,...) at trap_fatal+0x2b6 trap_pfault(d59f88ec,0,0) at trap_pfault+0x1cb trap(d59f0008,c0540028,c22f0028,c28f5400,c28c9a80,...) at trap+0x38d calltrap() at calltrap+0x5 --- trap 0xc, eip = 0, esp = 0xd59f892c, ebp = 0xd59f8940 --- (null)(c219f888,0,0,c219f810,c219f800,...) at 0 ttwakeup(c219f800,c219f800,c219f800,c28c9a80,d59f8990,...) at ttwakeup+0x65 ttymodem(c219f800,1) at ttymodem+0x170 ptcopen(c28f5400,3,2000,c2816bd0) at ptcopen+0x8c giant_open(c28f5400,3,2000,c2816bd0) at giant_open+0x4b devfs_open(d59f8a20) at devfs_open+0x1cf VOP_OPEN_APV(c067b540,d59f8a20) at VOP_OPEN_APV+0x38 vn_open_cred(d59f8b88,d59f8c88,0,c2b20200,4,...) at vn_open_cred+0x453 vn_open(d59f8b88,d59f8c88,0,4) at vn_open+0x1e kern_open(c2816bd0,bfbfe2a0,0,3,0,...) at kern_open+0xb9 open(c2816bd0,d59f8d04) at open+0x18 syscall(3b,3b,3b,bfbfe2ab,ffffffff,...) at syscall+0x2ae Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (5, FreeBSD ELF32, open), eip = 0x28146e0f, esp = 0xbfbfe26c, ebp = 0xbfbfe2c8 --- Cheers Michiel