From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:43091) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gtJYc-0006n8-EF for qemu-devel@nongnu.org; Mon, 11 Feb 2019 16:56:08 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gtJYZ-0007tI-9A for qemu-devel@nongnu.org; Mon, 11 Feb 2019 16:56:06 -0500 Received: from indium.canonical.com ([91.189.90.7]:34866) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1gtJYW-0007gO-I3 for qemu-devel@nongnu.org; Mon, 11 Feb 2019 16:56:02 -0500 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.86_2 #2 (Debian)) id 1gtJY7-0002yd-3g for ; Mon, 11 Feb 2019 21:55:35 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id 19C632E80C9 for ; Mon, 11 Feb 2019 21:55:35 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Mon, 11 Feb 2019 21:50:00 -0000 From: liang yan Reply-To: Bug 1815143 <1815143@bugs.launchpad.net> Sender: bounces@canonical.com References: <154957727033.18791.11498118265359264370.malonedeb@soybean.canonical.com> Message-Id: <154992180100.19096.11877301553291167380.malone@soybean.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 1815143] Re: qemu-system-s390x fails when running without kvm: fatal: EXECUTE on instruction prefix 0x7f4 not implemented List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org A little bit confused here, I tired to bisect it from 2.10, but it was always good from this branch. then I went back to 2.9.1, it was always crashed. Machine type related? -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1815143 Title: qemu-system-s390x fails when running without kvm: fatal: EXECUTE on instruction prefix 0x7f4 not implemented Status in QEMU: Incomplete Bug description: just wondering if TCG implements instruction prefix 0x7f4 server3:~ # zcat /boot/vmlinux-4.4.162-94.72-default.gz > /tmp/kernel --> starting qemu with kvm enabled works fine server3:~ # qemu-system-s390x -nographic -kernel /tmp/kernel -initrd /boo= t/initrd -enable-kvm Initializing cgroup subsys cpuset Initializing cgroup subsys cpu Initializing cgroup subsys cpuacct Linux version 4.4.162-94.72-default (geeko@buildhost) (gcc version 4.8.5 = (SUSE Linux) ) #1 SMP Mon Nov 12 18:57:45 UTC 2018 (9de753f) setup.289988: Linux is running under KVM in 64-bit mode setup.b050d0: The maximum memory size is 128MB numa.196305: NUMA mode: plain Write protected kernel read-only data: 8692k [...] --> but starting qemu without kvm enabled works fails server3:~ # qemu-system-s390x -nographic -kernel /tmp/kernel -initrd /boo= t/initrd = qemu: fatal: EXECUTE on instruction prefix 0x7f4 not implemented PSW=3Dmask 0000000180000000 addr 000000000067ed6e cc 00 R00=3D0000000080000000 R01=3D000000000067ed76 R02=3D0000000000000000 R03= =3D0000000000000000 R04=3D0000000000111548 R05=3D0000000000000000 R06=3D0000000000000000 R07= =3D0000000000000000 R08=3D00000000000100f6 R09=3D0000000000000000 R10=3D0000000000000000 R11= =3D0000000000000000 R12=3D0000000000ae2000 R13=3D0000000000681978 R14=3D0000000000111548 R15= =3D000000000000bef0 F00=3D0000000000000000 F01=3D0000000000000000 F02=3D0000000000000000 F03= =3D0000000000000000 F04=3D0000000000000000 F05=3D0000000000000000 F06=3D0000000000000000 F07= =3D0000000000000000 F08=3D0000000000000000 F09=3D0000000000000000 F10=3D0000000000000000 F11= =3D0000000000000000 F12=3D0000000000000000 F13=3D0000000000000000 F14=3D0000000000000000 F15= =3D0000000000000000 V00=3D00000000000000000000000000000000 V01=3D0000000000000000000000000000= 0000 V02=3D00000000000000000000000000000000 V03=3D0000000000000000000000000000= 0000 V04=3D00000000000000000000000000000000 V05=3D0000000000000000000000000000= 0000 V06=3D00000000000000000000000000000000 V07=3D0000000000000000000000000000= 0000 V08=3D00000000000000000000000000000000 V09=3D0000000000000000000000000000= 0000 V10=3D00000000000000000000000000000000 V11=3D0000000000000000000000000000= 0000 V12=3D00000000000000000000000000000000 V13=3D0000000000000000000000000000= 0000 V14=3D00000000000000000000000000000000 V15=3D0000000000000000000000000000= 0000 V16=3D00000000000000000000000000000000 V17=3D0000000000000000000000000000= 0000 V18=3D00000000000000000000000000000000 V19=3D0000000000000000000000000000= 0000 V20=3D00000000000000000000000000000000 V21=3D0000000000000000000000000000= 0000 V22=3D00000000000000000000000000000000 V23=3D0000000000000000000000000000= 0000 V24=3D00000000000000000000000000000000 V25=3D0000000000000000000000000000= 0000 V26=3D00000000000000000000000000000000 V27=3D0000000000000000000000000000= 0000 V28=3D00000000000000000000000000000000 V29=3D0000000000000000000000000000= 0000 V30=3D00000000000000000000000000000000 V31=3D0000000000000000000000000000= 0000 C00=3D0000000000000000 C01=3D0000000000000000 C02=3D0000000000000000 C03= =3D0000000000000000 C04=3D0000000000000000 C05=3D0000000000000000 C06=3D0000000000000000 C07= =3D0000000000000000 C08=3D0000000000000000 C09=3D0000000000000000 C10=3D0000000000000000 C11= =3D0000000000000000 C12=3D0000000000000000 C13=3D0000000000000000 C14=3D0000000000000000 C15= =3D0000000000000000 Aborted (core dumped) = server3:~ # lscpu Architecture: s390x CPU op-mode(s): 32-bit, 64-bit Byte Order: Big Endian CPU(s): 2 On-line CPU(s) list: 0,1 Thread(s) per core: 1 Core(s) per socket: 1 Socket(s) per book: 1 Book(s) per drawer: 1 Drawer(s): 2 NUMA node(s): 1 Vendor ID: IBM/S390 Machine type: 2964 BogoMIPS: 20325.00 Hypervisor: z/VM 6.4.0 Hypervisor vendor: IBM Virtualization type: full Dispatching mode: horizontal L1d cache: 128K L1i cache: 96K L2d cache: 2048K L2i cache: 2048K L3 cache: 65536K L4 cache: 491520K NUMA node0 CPU(s): 0-63 Flags: esan3 zarch stfle msa ldisp eimm dfp edat etf3eh h= ighgprs te vx sie server3:~ # uname -a Linux server3 4.4.126-94.22-default #1 SMP Wed Apr 11 07:45:03 UTC 2018 (= 9649989) s390x s390x s390x GNU/Linux server3:~ # To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1815143/+subscriptions