From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Chen, Tiejun" Subject: Re: [bisected] KVM in 3.19-rc1 is completely broken Date: Tue, 23 Dec 2014 16:19:29 +0800 Message-ID: <54992591.5070206@intel.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Cc: jamie@audible.transient.net To: Andy Lutomirski , kvm list , Paolo Bonzini , Igor Mammedov Return-path: Received: from mga09.intel.com ([134.134.136.24]:38992 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752026AbaLWITf (ORCPT ); Tue, 23 Dec 2014 03:19:35 -0500 In-Reply-To: Sender: kvm-owner@vger.kernel.org List-ID: On 2014/12/23 9:38, Andy Lutomirski wrote: > I can't get it to work at all. It fails with: > How can we reproduce this? I just try the following command, qemu-system-x86_64 -machine pc,accel=kvm -m 2048 -smp 2 -hda ubuntu.img but at least I can boot that successfully and already live for a while. Here I installed ubuntu14.04 as a guest, and Linux commit: aa39477b5692611b91ac9455ae588738852b3f60 Qemu commit: 7e58e2ac7778cca3234c33387e49577bb7732714 So any specific Kconfigs need to be enabled? Tiejun > KVM internal error. Suberror: 1 > emulation failure > EAX=000dee58 EBX=00000000 ECX=00000000 EDX=00000cfd > ESI=00000059 EDI=00000000 EBP=00000000 ESP=00006fc4 > EIP=000f17f4 EFL=00010012 [----A--] CPL=0 II=0 A20=1 SMM=0 HLT=0 > ES =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA] > CS =0008 00000000 ffffffff 00c09b00 DPL=0 CS32 [-RA] > SS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA] > DS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA] > FS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA] > GS =0010 00000000 ffffffff 00c09300 DPL=0 DS [-WA] > LDT=0000 00000000 0000ffff 00008200 DPL=0 LDT > TR =0000 00000000 0000ffff 00008b00 DPL=0 TSS32-busy > GDT= 000f6c58 00000037 > IDT= 000f6c96 00000000 > CR0=60000011 CR2=00000000 CR3=00000000 CR4=00000000 > DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 > DR3=0000000000000000 > DR6=00000000ffff0ff0 DR7=0000000000000400 > EFER=0000000000000000 > Code=e8 75 fc ff ff 89 f2 a8 10 89 d8 75 0a b9 74 17 ff ff ff d1 <5b> > 5e c3 5b 5e e9 76 ff ff ff 57 56 53 8b 35 38 65 0f 00 85 f6 0f 88 be > 00 00 00 0f b7 f6 > > The problem started with: > > commit 0e60b0799fedc495a5c57dbd669de3c10d72edd2 > Author: Igor Mammedov > Date: Mon Dec 1 17:29:26 2014 +0000 > > kvm: change memslot sorting rule from size to GFN > > it will allow to use binary search for GFN -> memslot > lookups, reducing lookup cost with large slots amount. > > Signed-off-by: Igor Mammedov > Signed-off-by: Paolo Bonzini > > > --Andy > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > >