From owner-freebsd-current@FreeBSD.ORG Tue Oct 19 06:44:58 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 B4DB516A4CE for ; Tue, 19 Oct 2004 06:44:58 +0000 (GMT) Received: from ran.psg.com (ip192.186.dsl-acs2.seawa0.iinet.com [209.20.186.192]) by mx1.FreeBSD.org (Postfix) with ESMTP id 51EFF43D49 for ; Tue, 19 Oct 2004 06:44:58 +0000 (GMT) (envelope-from randy@psg.com) Received: from localhost ([127.0.0.1] helo=ran.psg.com.psg.com) by ran.psg.com with esmtp (Exim 4.34 (FreeBSD)) id 1CJnjt-000CIp-N5 for freebsd-current@freebsd.org; Mon, 18 Oct 2004 23:44:57 -0700 From: Randy Bush MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <16756.47081.304613.940742@ran.psg.com> Date: Mon, 18 Oct 2004 23:44:57 -0700 To: FreeBSD Current Subject: trap 12 with preempt (and ule) 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: Tue, 19 Oct 2004 06:44:58 -0000 this was not happening with no preempt randy --- kernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode fault virtual address = 0x14c fault code = supervisor write, page not present instruction pointer = 0x8:0xc04f84ff stack pointer = 0x10:0xd67b9b90 frame pointer = 0x10:0xd67b9b9c code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 430 (asterisk) [thread 100111] Stopped at runq_remove+0x33: movl %eax,0x4(%esi) db> trace runq_remove(0,c1e09490,d67b9bd4,c1e094e0,c1e09340) at runq_remove+0x33 sched_prio(c1e09340,68,246,c17d3200,d67b9c24) at sched_prio+0x5d propagate_priority(c1e094e0,c1e09340,c0508db3,498f486d,246) at propagate_priority+0x6d turnstile_wait(c17d326c,c1e09340,c1e094e0,c17d3200,0) at turnstile_wait+0x32f _mtx_lock_sleep(c17d326c,c1e094e0,0,0,0) at _mtx_lock_sleep+0xb5 sleepq_calc_signal_retval(0,0,c06351cb,100,c17d3200) at sleepq_calc_signal_retval+0x5a msleep(c1567ac0,c17d326c,168,c06351cb,64) at msleep+0x3ca kse_release(c1e094e0,d67b9d14,4,c04caa97,0) at kse_release+0x298 syscall(80c002f,2f,80c002f,80cb000,0) at syscall+0x2f8 Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (383, FreeBSD ELF32, kse_release), eip = 0x2815af1b, esp = 0x80cff88, ebp = 0x80cffc4 ---