From owner-freebsd-stable@FreeBSD.ORG Fri Sep 1 23:02:08 2006 Return-Path: X-Original-To: freebsd-stable@freebsd.org Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id E3DA916A4DF; Fri, 1 Sep 2006 23:02:08 +0000 (UTC) (envelope-from dandee@hellteam.net) Received: from pipa.vshosting.cz (pipa.vshosting.cz [81.0.201.10]) by mx1.FreeBSD.org (Postfix) with ESMTP id EB6C743D6B; Fri, 1 Sep 2006 23:01:55 +0000 (GMT) (envelope-from dandee@hellteam.net) Received: from localhost (localhost [127.0.0.1]) by pipa.vshosting.cz (Postfix) with ESMTP id 0D4D34E791; Sat, 2 Sep 2006 01:01:56 +0200 (CEST) Received: from pipa.vshosting.cz ([127.0.0.1]) by localhost (pipa [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 14458-08; Sat, 2 Sep 2006 01:01:55 +0200 (CEST) Received: from gandalf (unknown [81.0.245.205]) (using TLSv1 with cipher RC4-MD5 (128/128 bits)) (No client certificate requested) by pipa.vshosting.cz (Postfix) with ESMTP id 5B55C4E708; Sat, 2 Sep 2006 01:01:55 +0200 (CEST) From: =?iso-8859-2?Q?Daniel_Dvo=F8=E1k?= To: Date: Sat, 2 Sep 2006 01:01:53 +0200 Message-ID: <00f701c6ce1a$9d9ea810$6508280a@tocnet28.jspoj.czf> MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_NextPart_000_00F8_01C6CE2B.61277810" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 Thread-Index: AcbOGp1LGXCGck2eRB6NFWk6pbgwQQ== X-Virus-Scanned: by amavisd-new-20030616-p10 (Debian) at profix.cz X-Content-Filtered-By: Mailman/MimeDel 2.1.5 Cc: freebsd-current@freebsd.org Subject: watchdogd_flags followed by panic watchdog timeout, after reboot my rc.conf disappear X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: dandee@volny.cz List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 01 Sep 2006 23:02:09 -0000 This is a multi-part message in MIME format. ------=_NextPart_000_00F8_01C6CE2B.61277810 Content-Type: text/plain; charset="iso-8859-2" Content-Transfer-Encoding: quoted-printable Hi all, =20 first of all, I=B4m sorry maybe for my bad English. =20 We have 2 routers which I maintain in our mesh wireless community = network. =20 The Router 1 has 2 atheros adapters, ath0=3Dwistron cm9, ath1=3Dwistron = cm10, of course some sisX, fxpX and so on. The Router 2 has 1 atheros adapter, ath0=3Dwistron CM10. =20 My R1 panics and even more it freezes very often. Maybe the reason for panicing and freezing is the same and maybe not. =20 This is not important now, this story is about R2. =20 I started to use "option SW_WATCHDOG" in both my custom kernels on the = R1 and R2 recently in hope, it is some walkaround for freezing at least if = not for panicing. =20 In the /etc/defaults/rc.conf there are not "watchdogd_flags=3D""" = option, but I tried to wrote it to my /etc/rc.conf in this way: =20 watchdogd_enable=3D"YES" watchdogd_flags=3D"-e ping 10.40.0.72 -s 2 -t 1" =20 I saved my rc.conf without any doubt. =20 I did so, because I wanted to instruct watchdogd to execute my command, common pinging some IP address. I was not satisfied with a trivial file system check instead. =20 After saving the rc.conf file, I restarted watchdogd deamon at once. =20 ... and ... 2 seconds ... my ssh client was disconnected ... unexpected = end of ssh session. :) =20 Okay, maybe something wrong, maybe I did a mistake and it panicked. =20 I was waitting for 3 minutes, but R2 did not react at all. =20 So I went to R2 and I powered off and powered on ... but still it was = the same. =20 After I attached monitor and keyboard, I saw that ifconfig did not = configure any interfaces. Why ? =20 Answear: Because rc.conf had 0 Bytes !!! =20 -rw-r--r-- 1 root wheel 6174 Sep 1 XX:XX rc.conf , I do not = remember time of last modification of file. =20 So the content of rc.conf was completly gone !!! =20 Is it possible at all ? =20 Now I am scared that any modification rc.conf will be mean loss of = content. =20 I have kernel dump and backtrace of panic. =20 It is in the attachment. =20 =20 If I could help with this, I will do it. =20 And please explain me somebody, how I lost the content of rc.conf file. = :-O Thank you. =20 Daniel =20 P.S.: I am not currently subscribed in the freebsd-stable mailling list, = so use my e-mail address. I am ok with freebsd-current mailling list. ------=_NextPart_000_00F8_01C6CE2B.61277810 Content-Type: text/plain; name="backtrace panic.txt" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="backtrace panic.txt" # cd /usr/obj/usr/src/sys/mykernel/ # kgdb kernel.debug /var/crash/vmcore.0 [GDB will not be able to debug user-mode threads: = /usr/lib/libthread_db.so: Unde = fined symbol "ps_pglobal_lookup"] GNU gdb 6.1.1 [FreeBSD] Copyright 2004 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-marcel-freebsd". Unread portion of the kernel message buffer: interrupt total irq14: ata0 325735 irq16: fxp1 5 irq17: ath0 50298459 irq18: wi0 3904083 irq19: sis0 fxp0 20167051 cpu0: timer 604044908 Total 678740241 panic: watchdog timeout Uptime: 3d11h53m45s Dumping 223 MB (2 chunks) chunk 0: 1MB (159 pages) ... ok chunk 1: 223MB (57072 pages) 207 191 175 159 143 127 111 95 79 63 47 = 31 15 #0 doadump () at pcpu.h:165 165 __asm __volatile("movl %%fs:0,%0" : "=3Dr" (td)); (kgdb) backtrace #0 doadump () at pcpu.h:165 #1 0xc059c4ee in boot (howto=3D260) at = /usr/src/sys/kern/kern_shutdown.c:402 #2 0xc059c7a6 in panic (fmt=3D0xc081050d "watchdog timeout") at /usr/src/sys/kern/kern_shutdown.c:558 #3 0xc0571642 in watchdog_fire () at /usr/src/sys/kern/kern_clock.c:583 #4 0xc0571130 in hardclock (frame=3D0xc1f44780) at /usr/src/sys/kern/kern_clock.c:279 #5 0xc07a4631 in lapic_handle_timer (frame=3D {cf_vec =3D 0, cf_fs =3D 8, cf_es =3D 40, cf_ds =3D 40, cf_edi =3D = -1040320488, cf_esi =3D -1040320512, cf_ebp =3D -890192676, cf_ebx =3D = 0, cf_edx =3D 0, cf_ecx =3D -1041016416, cf_eax =3D 1000, cf_eip =3D = -1063283195, cf_cs =3D 32, cf_eflags =3D 524818, cf_esp =3D -890192644, = cf_ss =3D -1063305969}) at /usr/src/sys/i386/i386/local_apic.c:623 #6 0xc079eb30 in Xtimerint () at apic_vector.s:137 #7 0xc09f9605 in ?? () #8 0xcaf0bd04 in ?? () #9 0xc07a609f in cpu_idle () at /usr/src/sys/i386/i386/machdep.c:1134 Previous frame inner to this frame (corrupt stack?) (kgdb) quit ------=_NextPart_000_00F8_01C6CE2B.61277810--