From owner-freebsd-questions@FreeBSD.ORG Fri Dec 16 08:46:00 2005 Return-Path: X-Original-To: freebsd-questions@freebsd.org Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id DC4E816A42D for ; Fri, 16 Dec 2005 08:46:00 +0000 (GMT) (envelope-from mistry.7@osu.edu) Received: from mail.united-ware.com (am-productions.biz [69.61.164.22]) by mx1.FreeBSD.org (Postfix) with ESMTP id 1C64743DA3 for ; Fri, 16 Dec 2005 08:45:31 +0000 (GMT) (envelope-from mistry.7@osu.edu) Received: from [192.168.1.100] (am-productions.biz [69.61.164.22]) (authenticated bits=0) by mail.united-ware.com (8.13.4/8.13.4) with ESMTP id jBG8mVlC020286 (version=TLSv1/SSLv3 cipher=RC4-MD5 bits=128 verify=NO) for ; Fri, 16 Dec 2005 03:48:37 -0500 (EST) (envelope-from mistry.7@osu.edu) From: Anish Mistry To: freebsd-questions@freebsd.org Date: Fri, 16 Dec 2005 03:47:35 -0500 User-Agent: KMail/1.8.3 MIME-Version: 1.0 Content-Disposition: inline Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Message-Id: <200512160347.35994.mistry.7@osu.edu> X-Spam-Status: No, score=-3.0 required=5.0 tests=ALL_TRUSTED, BAYES_40, BIZ_TLD, MYFREEBSD2 autolearn=failed version=3.1.0 X-Spam-Checker-Version: SpamAssassin 3.1.0 (2005-09-13) on mail.united-ware.com X-Virus-Scanned: ClamAV 0.87/1210/Thu Dec 15 10:23:22 2005 on mail.united-ware.com X-Virus-Status: Clean Subject: Reproducable Panic 6.0-RELEASE i386 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 16 Dec 2005 08:46:01 -0000 I'm getting the following panic, which I can reproduce easily. Let me know what other information I should provide. The backtrace seems really short for some reason. I get the panic when running a multi-threaded application I'm developing/modifying. kernel trap 12 with interrupts disabled Fatal trap 12: page fault while in kernel mode fault virtual address = 0x48 fault code = supervisor write, page not present instruction pointer = 0x20:0xc0510cb3 stack pointer = 0x28:0xe9aebb74 frame pointer = 0x28:0xe9aebbf8 code segment = base 0x0, limit 0xfffff, type 0x1b = DPL 0, pres 1, def32 1, gran 1 processor eflags = resume, IOPL = 0 current process = 7848 (gdb) [thread pid 7848 tid 100184 ] Stopped at kern_ptrace+0x11e3: andl $0xfffbffff,0x48(%eax) db> bt Tracing pid 7848 tid 100184 td 0xc4302180 kern_ptrace(c4302180,a,1ea6,0,11) at kern_ptrace+0x11e3 ptrace(c4302180,e9aebd04,10,418,4) at ptrace+0x56 syscall(3b,3b,3b,bfbfe580,1ea6) at syscall+0x13d Xint0x80_syscall() at Xint0x80_syscall+0x1f --- syscall (26, FreeBSD ELF32, ptrace), eip = 0x283360e7, esp = 0xbfbfe3bc, ebp = 0xbfbfe3d8 --- Full panic and backtrace, and alltrace: http://am-productions.biz/docs/bigguy-panic.gz http://am-productions.biz/docs/bigguy-dmesg.gz http://am-productions.biz/docs/bigguy-pciconf.gz Kernel config: http://am-productions.biz/docs/BIGGUY.gz -- Anish Mistry