From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:32892) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XJj2j-00041V-1k for qemu-devel@nongnu.org; Tue, 19 Aug 2014 09:01:47 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1XJj2d-0000Ex-9a for qemu-devel@nongnu.org; Tue, 19 Aug 2014 09:01:40 -0400 Received: from mx2.avast.com ([91.213.143.6]:41862) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1XJj2c-0000Ei-V4 for qemu-devel@nongnu.org; Tue, 19 Aug 2014 09:01:35 -0400 Message-ID: <53F34AAC.4030905@jermar.eu> Date: Tue, 19 Aug 2014 15:01:32 +0200 From: Jakub Jermar MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [arm] Integrator/CP regression under QEMU 2.1.0 running HelenOS List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: HelenOS development mailing list Hello, there seems to be a regression in QEMU 2.1.0 which demonstrates itself when running the mainline HelenOS Integrator/CP (i.e. ARMv5) image. The offending instruction seems to be: vmrs r0, fpsid Upon its execution, HelenOS kernel receives an Undefined instruction exception (which it does not anticipate at that point) and crashes. QEMU 2.0.0 was not affected by this issue. Any ideas what may have gone wrong? If needed, I can provide a test binary. Please Cc me directly in your reply as I am not subscribed to qemu-devel@ Thanks, Jakub