From owner-freebsd-current@FreeBSD.ORG Sat May 8 20:00:33 2010 Return-Path: Delivered-To: current@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 0DE5F106566C for ; Sat, 8 May 2010 20:00:33 +0000 (UTC) (envelope-from weongyo.jeong@gmail.com) Received: from mail-pw0-f54.google.com (mail-pw0-f54.google.com [209.85.160.54]) by mx1.freebsd.org (Postfix) with ESMTP id D25DD8FC15 for ; Sat, 8 May 2010 20:00:32 +0000 (UTC) Received: by pwi9 with SMTP id 9so1090256pwi.13 for ; Sat, 08 May 2010 13:00:24 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:received:from:date:to:subject :message-id:reply-to:mail-followup-to:mime-version:content-type :content-disposition:user-agent:organization:x-operation-sytem; bh=2dCgeNITZAR3L3jP3GPUM/ikK/WYTm43F5F6jNyFAxw=; b=F4EOHhqyqroNUEIk8TpIvlmetFulYzPK9ZlyBQqq+HOF9AqtvR3v+Vf+PrhF5Qci9w sosBgDyAfCTGz24z3BeJXC2K7FCGJdHq4b0LH56zFEsb0vVycEJKQV3Z7zRz93i8Lp8J ST2EqYDUotpgGiuYAN+bHCNj/Q0172Iu1OwvQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=from:date:to:subject:message-id:reply-to:mail-followup-to :mime-version:content-type:content-disposition:user-agent :organization:x-operation-sytem; b=Kb/ZQjPdkEtCp0jeqP7NbmsCI3Ul5vGAIObhuMyOyXE62SAh4HApmyKP2MylUmV07B Ue2EHPNutvLzub+ZrLx8C2ThzHgVqzDhw/mbmTZXCJ/vozRcvXDw5qug9ZMfpW9prScz sBRn/zZTuXxPT37HnlkS84bhvKbyio1qYPWLs= Received: by 10.140.248.7 with SMTP id v7mr1125959rvh.252.1273348823901; Sat, 08 May 2010 13:00:23 -0700 (PDT) Received: from weongyo ([174.35.1.224]) by mx.google.com with ESMTPS id 23sm2927292pzk.10.2010.05.08.13.00.22 (version=SSLv3 cipher=RC4-MD5); Sat, 08 May 2010 13:00:23 -0700 (PDT) Received: by weongyo (sSMTP sendmail emulation); Sat, 8 May 2010 13:00:32 -0700 From: Weongyo Jeong Date: Sat, 8 May 2010 13:00:32 -0700 To: current@freebsd.org Message-ID: <20100508200032.GB31100@weongyo> Mail-Followup-To: current@freebsd.org Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.3i Organization: CDNetworks. X-Operation-Sytem: FreeBSD Cc: Subject: a panic on uart_z8530_class? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list Reply-To: Weongyo Jeong List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 08 May 2010 20:00:33 -0000 Hello, Anyone encountered this panic on recent CURRENT kernel? [root@test ~]# uname -a FreeBSD test 9.0-CURRENT FreeBSD 9.0-CURRENT #16: Sun May 2 00:24:12 PDT 2010 root@test:/usr/obj/usr/src/sys/GENERIC amd64 [root@test /home/freebsd/sys/modules/bwn]# ifconfig wlan0 create wlandev bwn0 Fatal trap 12: page fault while in kernel mode cpuid = 0; apic id = 00 fault virtual address = 0x0 fault code = supervisor read instruction, page not present instruction pointer = 0x20:0x0 stack pointer = 0x28:0xffffff8073cdd810 frame pointer = 0x28:0xffffff8073cdd8e0 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, long 1, def32 0, gran 1 processor eflags = interrupt enabled, resume, IOPL = 0 current process = 1795 (ifconfig) [ thread pid 1795 tid 100096 ] Stopped at 0: *** error reading from address 0 *** db> bt Tracing pid 1795 tid 100096 td 0xffffff0003d8b390 uart_z8530_class() at 0 ifc_simple_create() at ifc_simple_create+0x89 if_clone_createif() at if_clone_createif+0x64 ifioctl() at ifioctl+0x685 kern_ioctl() at kern_ioctl+0xc5 ioctl() at ioctl+0xfd syscall() at syscall+0x102 Xfast_syscall() at Xfast_syscall+0xe1 --- syscall (54, FreeBSD ELF64, ioctl), rip = 0x800b86d0c, rsp = 0x7fffffffe2e8, rbp = 0x7fffffffee36 --- db> call doadump Physical memory: 3916 MB Dumping 1239 MB: 1224 1208 1192 1176 1160 1144 1128 1112 1096 1080 1064 1048 1032 1016 1000 984 968 952 936 920 904 888 872 856 840 824 808 792 776 760 744 728 712 696 680 664 648 632 616 600 584 568 552 536 520 504 488 472 456 440 424 408 392 376 360 344 328 312 296 280 264 248 232 216 200 184 168 152 136 120 104 88 72 56 40 24 8 Dump complete = 0 db> reset [root@test ~]# kgdb /boot/kernel/kernel /var/crash/vmcore.1 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 "amd64-marcel-freebsd"... Cannot access memory at address 0xffffff0127ffffe0 (kgdb) bt #0 0x0000000000000000 in ?? () Cannot access memory at address 0x0 (kgdb) q regards, Weongyo Jeong