From owner-freebsd-bugs@FreeBSD.ORG Fri Jan 25 21:33:21 2008 Return-Path: Delivered-To: freebsd-bugs@FreeBSD.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 7197516A417; Fri, 25 Jan 2008 21:33:21 +0000 (UTC) (envelope-from tadokoro@csg.is.titech.ac.jp) Received: from mail.csg.is.titech.ac.jp (mail.csg.is.titech.ac.jp [131.112.40.132]) by mx1.freebsd.org (Postfix) with ESMTP id 2B9F513C455; Fri, 25 Jan 2008 21:33:21 +0000 (UTC) (envelope-from tadokoro@csg.is.titech.ac.jp) Received: from mail.csg.is.titech.ac.jp (mail.csg.is.titech.ac.jp [127.0.0.1]) by mail.csg.is.titech.ac.jp (Postfix) with ESMTP id 034D81002CE6; Sat, 26 Jan 2008 06:07:51 +0900 (JST) Received: from nyny..csg.is.titech.ac.jp (nyny.pv.csg.is.titech.ac.jp [192.168.16.222]) by mail.csg.is.titech.ac.jp (Postfix) with ESMTP id E2A8E1002D40; Sat, 26 Jan 2008 06:07:50 +0900 (JST) Date: Sat, 26 Jan 2008 06:07:50 +0900 Message-ID: <87odb9havt.wl%tadokoro@csg.is.titech.ac.jp> From: tadokoro To: kris@FreeBSD.org In-Reply-To: <200801242046.m0OKk19X077644@freefall.freebsd.org> References: <200801242046.m0OKk19X077644@freefall.freebsd.org> User-Agent: Wanderlust/2.15.5 (Almost Unreal) SEMI/1.14.6 (Maruoka) FLIM/1.14.9 (=?ISO-8859-4?Q?Goj=F2?=) APEL/10.7 Emacs/23.0.50 (x86_64-debian-linux-gnu) MULE/5.0 (SAKAKI) MIME-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset=US-ASCII X-Virus-Scanned: ClamAV using ClamSMTP Cc: freebsd-bugs@FreeBSD.org, tadokoro@csg.is.titech.ac.jp Subject: Re: kern/119890: debuggin pidgin with gdb causes kernel crash X-BeenThere: freebsd-bugs@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Bug reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 25 Jan 2008 21:33:21 -0000 hi, kernel does not panic, so I cannot dump kernel. And I saw message "kernel trap 9 with interrupts disabled" on the console. So I built kernel with kdb and ddb, and I did single stepping execution with break point at printf. At doreti_iret_faut, db> s Stopped at doreti_iret_fault: subq $0x98,%rsp db> s Stopped at doreti_iret_fault+0x7: testb $0x3,0xa0(%rsp) db> s Stopped at doreti_iret_fault+0xf: jz doreti_iret_fault+0x14 db> s Stopped at doreti_iret_fault+0x11: invlpg %ax db> s not return... Keyboard(num lock or caps lock) does not react. What should I do? -- tadokoro