From owner-freebsd-current@FreeBSD.ORG Mon Aug 23 06:57:46 2004 Return-Path: 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 8141816A4CE for ; Mon, 23 Aug 2004 06:57:46 +0000 (GMT) Received: from neerbosch.nijmegen.internl.net (neerbosch.nijmegen.internl.net [217.149.193.38]) by mx1.FreeBSD.org (Postfix) with ESMTP id 5769D43D45 for ; Mon, 23 Aug 2004 06:57:45 +0000 (GMT) (envelope-from michiel@boland.org) Received: from brakkenstein.nijmegen.internl.net by neerbosch.nijmegen.internl.net id i7N6vhYA001984 (8.12.10/1.4); Mon, 23 Aug 2004 08:57:43 +0200 (MET DST) Received: from localhost by brakkenstein.nijmegen.internl.net via mboland@localhost with ESMTP for id i7N6vh4I001359 (8.12.10/2.02); Mon, 23 Aug 2004 08:57:43 +0200 (MEST) X-Authentication-Warning: brakkenstein.nijmegen.internl.net: mboland owned process doing -bs Date: Mon, 23 Aug 2004 08:57:43 +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: ddb problems X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 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: Mon, 23 Aug 2004 06:57:46 -0000 Hi. I can't seem to get anything useful out of ddb with recent -CURRENTs. I get things like double faults, page faults, or endless streams of console messages. Is anyone else seeing this? Cheers Michiel KDB: enter: Line break on console [thread 100004] Stopped at kdb_enter+0x2b: nop db> break flock db> c [thread 100073] Stopped at flock+0x1: movl %esp,%ebp db> tr flock(2f,2f,2f,80c80f6,2) at flock+0x1 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (131, FreeBSD ELF32, flock), eip = 0x28282c37, esp = 0xbfbfc03c, ebp = 0xbfbfc068 --- db> show r cs 0x8 ds 0x10 es 0x10 fs 0x18 ss 0x10 eax 0xd99acd14 ecx 0 edx 0xc0622cb8 sysent+0x418 ebx 0xc19c71c0 esp 0xd99accf0 ebp 0xd99acd40 esi 0 edi 0xc17c29a0 eip 0xc04954cd flock+0x1 efl 0x246 dr0 0 dr1 0 dr2 0 dr3 0 dr4 0xffff0ff0 dr5 0x400 dr6 0xffff0ff0 dr7 0x400 flock+0x1: movl %esp,%ebp db> s [thread 100073] Stopped at flock+0x3: pushl %edi db> [thread 100073] Stopped at flock+0x4: pushl %esi db> [thread 100073] Stopped at flock+0x5: pushl %ebx db> [thread 100073] Stopped at flock+0x6: subl $0x44,%esp db> [thread 100073] Stopped at flock+0x9: movl 0xc(%ebp),%esi db> [thread 100073] Stopped at flock+0xc: leal 0xffffffb0(%ebp),%eax db> [thread 100073] Stopped at flock+0xf: pushl %eax db> [thread 100073] Stopped at flock+0x10: pushl 0(%esi) db> Fatal trap 12: page fault while in kernel mode fault virtual address = 0x2 fault code = supervisor read, page not present instruction pointer = 0x8:0xc04954dc stack pointer = 0x10:0xd99acc9c frame pointer = 0x10:0xd99accf0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = trace trap, interrupt enabled, resume, IOPL = 0 current process = 659 (sendmail) [thread 100073] Stopped at flock+0x10: pushl 0(%esi) db> show r cs 0x8 ds 0xc0630010 ip_doopts+0x4 es 0xc05c0010 bios16+0x1fc fs 0x18 ss 0x10 eax 0xd99acca0 ecx 0 edx 0xc0622cb8 sysent+0x418 ebx 0xc19c71c0 esp 0xd99acc9c ebp 0xd99accf0 esi 0x2 edi 0xc17c29a0 eip 0xc04954dc flock+0x10 efl 0x10286 dr0 0 dr1 0 dr2 0 dr3 0 dr4 0xffff4ff0 dr5 0x400 dr6 0xffff4ff0 dr7 0x400 flock+0x10: pushl 0(%esi)