From mboxrd@z Thu Jan 1 00:00:00 1970 From: Igor Mammedov Subject: Windows 10 guest hang during 'info mem' Date: Fri, 24 Nov 2017 13:57:29 +0100 Message-ID: <20171124135729.60ceff1e@redhat.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, Paolo Bonzini , Radim =?UTF-8?B?S3LEjW3DocWZ?= To: Qemu Developers Return-path: Received: from mx1.redhat.com ([209.132.183.28]:60656 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753227AbdKXM5c (ORCPT ); Fri, 24 Nov 2017 07:57:32 -0500 Sender: kvm-owner@vger.kernel.org List-ID: I've stumbled on WS2016 hang when trying to list memory map in QEMU. Steps to reproduce: qemu-system-x86_64 -monitor stdio -enable-kvm -m 1G ws2016x64.img wait till guest boots and execute in monitor (qemu) info mem qemu will hang while printing mappings, consuming 100% cpu and not responding to ^C. I've also tried with old (2.8) and current qemu master and today's upstream kernel where it also doesn't work but WS2012R2x64 guest works just fine. PS: CCing KVM list as the issue happens only when KVM is enabled. From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36978) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1eIDY0-0006df-T7 for qemu-devel@nongnu.org; Fri, 24 Nov 2017 07:57:37 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1eIDXx-00022E-Ot for qemu-devel@nongnu.org; Fri, 24 Nov 2017 07:57:36 -0500 Received: from mx1.redhat.com ([209.132.183.28]:35794) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1eIDXx-00021Y-Ix for qemu-devel@nongnu.org; Fri, 24 Nov 2017 07:57:33 -0500 Date: Fri, 24 Nov 2017 13:57:29 +0100 From: Igor Mammedov Message-ID: <20171124135729.60ceff1e@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] Windows 10 guest hang during 'info mem' List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Qemu Developers Cc: kvm@vger.kernel.org, Paolo Bonzini , Radim =?UTF-8?B?S3LEjW3DocWZ?= I've stumbled on WS2016 hang when trying to list memory map in QEMU. Steps to reproduce: qemu-system-x86_64 -monitor stdio -enable-kvm -m 1G ws2016x64.img wait till guest boots and execute in monitor (qemu) info mem qemu will hang while printing mappings, consuming 100% cpu and not responding to ^C. I've also tried with old (2.8) and current qemu master and today's upstream kernel where it also doesn't work but WS2012R2x64 guest works just fine. PS: CCing KVM list as the issue happens only when KVM is enabled.