From owner-freebsd-net@FreeBSD.ORG Fri Mar 26 06:00:53 2004 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 1093016A4D1 for ; Fri, 26 Mar 2004 06:00:53 -0800 (PST) Received: from mail.dti.supsi.ch (mail.die.supsi.ch [193.5.153.13]) by mx1.FreeBSD.org (Postfix) with ESMTP id 207CE43D39 for ; Fri, 26 Mar 2004 06:00:52 -0800 (PST) (envelope-from roberto.nunnari@supsi.ch) Received: from supsi.ch (pcm2027.dti.supsi.ch [193.5.152.27]) by mail.dti.supsi.ch (8.11.6/8.11.6) with ESMTP id i2QE0ov07284; Fri, 26 Mar 2004 15:00:51 +0100 Message-ID: <40643812.4000307@supsi.ch> Date: Fri, 26 Mar 2004 15:02:58 +0100 From: Roberto Nunnari User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 X-Accept-Language: en-us, en MIME-Version: 1.0 To: Roberto Nunnari References: <4062B48C.5060802@supsi.ch> In-Reply-To: <4062B48C.5060802@supsi.ch> Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit cc: freebsd-net@freebsd.org Subject: Re: Fatal trap in rt_msg2 X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 26 Mar 2004 14:00:53 -0000 Also, my kernel is configured without INET6 and my netmask is /23 .. maybe I should try again with INET6 and /24 ?? Roberto Nunnari wrote: > Hello. > > I'm posting here as I've been told in current it's a better place. > > On March 18th I did an upgrade from 5.2-p1 to RELENG_5_2 which > gave me 5.2.1-p3. cvsup, build and install went well, but > when I rebooted I got Fatal trap 12 during network configuration, > late in the boot process.. > > I could boot and get a working system using the old kernel.. > > Anyways, i did a partial restore > /boot, /bin, /etc, /lib, /libexec, /sbin > > that was enough to get the system back to multiuser mode > and running great as usual.. > > Yet.. I cannot seam to be able to upgrade the system any more.. > > Please help. Just ask and I'll be glad to give all relevant > information you may need in order to solve this problem. > I'm new to kernel debugging, but I'll do my best. I just > need some help and guidance. Thanks. > > here is the 5.2-p1 kernel config and dmesg > http://www.dti.supsi.ch/~robi/WEB.20040323 > http://www.dti.supsi.ch/~robi/dmesg.20040323 > > and this is the kernel config I used to save the dump. > http://www.dti.supsi.ch/~robi/WEB > > it seams that sa in rt_msg2 (/usr/src/sys/net/rtsock.c:708) > is a bogus pointer.. > > > Here is my gdb session: > > web.dti.supsi.ch# gdb -k kernel.debug /usr/crash/vmcore.1 > GNU gdb 5.2.1 (FreeBSD) > Copyright 2002 Free Software Foundation, Inc. > GDB is free software, covered by the GNU General Public License, and you > are > welcome to change it and/or distribute copies of it under certain > conditions. > Type "show copying" to see the conditions. > There is absolutely no warranty for GDB. Type "show warranty" for details. > This GDB was configured as "i386-unknown-freebsd"... > panic: page fault > panic messages: > --- > Fatal trap 12: page fault while in kernel mode > cpuid = 0; apic id = 00 > fault virtual address = 0xff70ff70 > fault code = supervisor read, page not present > instruction pointer = 0x8:0xc0568949 > stack pointer = 0x10:0xe40a1b04 > frame pointer = 0x10:0xe40a1b28 > 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 = 303 (ifconfig) > trap number = 12 > panic: page fault > cpuid = 0; > boot() called on cpu#0 > > syncing disks, buffers remaining... 218 218 216 216 215 215 215 215 215 > 215 215 215 215 215 215 215 215 215 215 215 215 215 215 215 > giving up on 200 buffers > Uptime: 46s > Dumping 1023 MB > 16 32 48 64 80 96 112 128 144 160 176 192 208 224 240 256 272 288 304 > 320 336 352 368 384 400 416 432 448 464 480 496 512 528 544 560 576 592 > 608 624 640 656 672 688 704 720 736 752 768 784 800 816 832 848 864 880 > 896 912 928 944 960 976 992 1008 > --- > Reading symbols from > /usr/obj/usr/src/sys/WEB/modules/usr/src/sys/modules/acpi/acpi.ko.debug...done. > > Loaded symbols for > /usr/obj/usr/src/sys/WEB/modules/usr/src/sys/modules/acpi/acpi.ko.debug > #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240 > 240 dumping++; > (kgdb) list *0xc0568949 > 0xc0568949 is in rt_msg2 (/usr/src/sys/net/rtsock.c:708). > 703 register struct sockaddr *sa; > 704 > 705 if ((sa = rtinfo->rti_info[i]) == 0) > 706 continue; > 707 rtinfo->rti_addrs |= (1 << i); > 708 dlen = ROUNDUP(sa->sa_len); > 709 if (cp) { > 710 bcopy((caddr_t)sa, cp, (unsigned)dlen); > 711 cp += dlen; > 712 } > (kgdb) backtrace > #0 doadump () at /usr/src/sys/kern/kern_shutdown.c:240 > #1 0xc04f1791 in boot (howto=256) at /usr/src/sys/kern/kern_shutdown.c:372 > #2 0xc04f1b6e in panic () at /usr/src/sys/kern/kern_shutdown.c:550 > #3 0xc062547c in trap_fatal (frame=0xe40a1ac4, eva=0) at > /usr/src/sys/i386/i386/trap.c:821 > #4 0xc0625122 in trap_pfault (frame=0xe40a1ac4, usermode=0, > eva=4285595504) at /usr/src/sys/i386/i386/trap.c:735 > #5 0xc0624d33 in trap (frame= > {tf_fs = 24, tf_es = -1066860528, tf_ds = 16, tf_edi = 0, tf_esi = > 4, tf_ebp = -469099736, tf_isp = -469099792, tf_ebx = -964638720, tf_edx > = -9371792, tf_ecx = -469099704, tf_eax = 16, tf_trapno = 12, tf_err = > 0, tf_eip = -1068070583, tf_cs = 8, tf_eflags = 66050, tf_esp = > -967258976, tf_ss = -964361888}) > at /usr/src/sys/i386/i386/trap.c:420 > #6 0xc0611f28 in calltrap () at {standard input}:94 > #7 0xc0568fe6 in sysctl_iflist (af=0, w=0xe40a1b9c) at > /usr/src/sys/net/rtsock.c:981 > #8 0xc056943e in sysctl_rtsock (oidp=0xc0694b00, arg1=0xe40a1cb4, > arg2=4, req=0xe40a1c10) at /usr/src/sys/net/rtsock.c:1132 > #9 0xc04fb89a in sysctl_root (oidp=0x0, arg1=0x16, arg2=-469099504, > req=0xe40a1cb8) at /usr/src/sys/kern/kern_sysctl.c:1179 > #10 0xc04fbb4d in userland_sysctl (td=0x0, name=0xe40a1cac, namelen=6, > old=0xe40a1c10, oldlenp=0xe40a1cb8, inkernel=0, new=0x16, newlen=0, > retval=0xe40a1ca8) at /usr/src/sys/kern/kern_sysctl.c:1286 > #11 0xc04fb980 in __sysctl (td=0x0, uap=0xe40a1d14) at > /usr/src/sys/kern/kern_sysctl.c:1216 > #12 0xc06257e0 in syscall (frame= > {tf_fs = 47, tf_es = 47, tf_ds = 47, tf_edi = 0, tf_esi = > -1077940636, tf_ebp = -1077940728, tf_isp = -469099148, tf_ebx = > 672416032, tf_edx = 0, tf_ecx = -1077940632, tf_eax = 202, tf_trapno = > 12, tf_err = 2, tf_eip = 671908719, tf_cs = 31, tf_eflags = 663, tf_esp > = -1077940772, tf_ss = 47}) > at /usr/src/sys/i386/i386/trap.c:1010 > #13 0xc0611f7d in Xint0x80_syscall () at {standard input}:136 > ---Can't read userspace from dump, or kernel process--- > > (kgdb) up 7 > #7 0xc0568fe6 in sysctl_iflist (af=0, w=0xe40a1b9c) at > /usr/src/sys/net/rtsock.c:981 > 981 len = rt_msg2(RTM_IFINFO, &info, (caddr_t)0, w); > (kgdb) print info > $1 = {rti_addrs = 16, rti_info = {0x0, 0x0, 0x0, 0x0, 0xff70ff70, 0x0, > 0x0, 0x0}, rti_flags = 0, rti_ifa = 0x0, rti_ifp = 0x0} > (kgdb) print w > $2 = (struct walkarg *) 0xe40a1b9c > (kgdb) print *w > $3 = {w_tmemsize = 152, w_op = 3, w_arg = 0, w_tmem = 0xc6850100 "\230", > w_req = 0xe40a1c10} > -- Roberto Nunnari -software engineer- mailto:roberto.nunnari@supsi.ch Scuola Universitaria Professionale della Svizzera Italiana Dipartimento Tecnologie Innovative http://www.dti.supsi.ch SUPSI-DTI Via Cantonale tel: +41-91-6108561 6928 Manno """ fax: +41-91-6108570 Switzerland (o o) =======================oOO==(_)==OOo========================