From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1Gy5qg-0004DC-Lw for qemu-devel@nongnu.org; Sat, 23 Dec 2006 07:19:34 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1Gy5qf-0004A4-3k for qemu-devel@nongnu.org; Sat, 23 Dec 2006 07:19:34 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Gy5qe-00049b-U9 for qemu-devel@nongnu.org; Sat, 23 Dec 2006 07:19:32 -0500 Received: from [193.7.176.60] (helo=mail.bawue.net) by monty-python.gnu.org with esmtps (TLS-1.0:DHE_RSA_AES_256_CBC_SHA:32) (Exim 4.52) id 1Gy5qe-00077U-Gx for qemu-devel@nongnu.org; Sat, 23 Dec 2006 07:19:32 -0500 Date: Sat, 23 Dec 2006 12:12:44 +0000 Subject: Re: [Qemu-devel] Question/problems with Qemu and 64Bit Opensuse 10.2 Message-ID: <20061223121244.GA12110@networkno.de> References: <458AB534.2050306@t-online.de> <458B6FF9.6050905@t-online.de> <458CE7CC.6070504@t-online.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <458CE7CC.6070504@t-online.de> From: Thiemo Seufer Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Werner Dittmann Cc: qemu-devel@nongnu.org Werner Dittmann wrote: > When Qemu seems to loop I switched to monitor mode "stop" the emulator > and gathered the output of some "info" operations. The "info registers" > show that registers contain the "strange" values, for example: > > RBX=ffffffff80523028 > RSP=ffffffff80522dc0 > RIP=ffffffff8025e67c > > Is it normal that e.g. the instruction pointer (RIP) can have such a > value? Any clue where to look why this loop happens? They look like they were truncated to 32-bit (sign-extended negative) values. Some operations probably assume 32-bit register width. Thiemo