With windows guest , KVM seems to crash very often KVM internal error. Suberror: 1 emulation failure RAX=0000000000000001 RBX=ffff8600b4db4750 RCX=ffff8600b4db4750 RDX=fffff80a6a4027f0 RSI=ffff8600b4dcda40 RDI=ffff8600b4dc7180 RBP=ffff8600b5267900 RSP=ffff8600b5112f20 R8 =ffff8600b4db4750 R9 =ffff8600b4db46c0 R10=0000000000000006 R11=ffff8600b5267b40 R12=0000000df0887076 R13=ffffd284d013ff70 R14=fffff802d154b180 R15=fffff802d1209000 RIP=fffff80a6a402812 RFL=00010202 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] CS =0010 0000000000000000 00000000 00209b00 DPL=0 CS64 [-RA] SS =0018 0000000000000000 00000000 00409300 DPL=0 DS [-WA] DS =002b 0000000000000000 ffffffff 00c0f300 DPL=3 DS [-WA] FS =0053 0000000000000000 00007c00 0040f300 DPL=3 DS [-WA] GS =002b ffff8600b4dc7000 ffffffff 00c0f300 DPL=3 DS [-WA] LDT=0000 0000000000000000 ffffffff 00000000 TR =0040 ffff8600b4dcdac0 00000067 00008b00 DPL=0 TSS64-busy GDT= ffff8600b4dd4b80 0000006f IDT= ffff8600b4dd4bf0 00000fff CR0=80050031 CR2=ffffb188e8743000 CR3=00000000001aa000 CR4=001506f8 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000fffe0ff0 DR7=0000000000000400 EFER=0000000000000d01 Code=c1 01 83 f8 01 74 1c 8b 41 04 85 c0 74 0d 0f 1f 40 00 f3 90 <8b> 41 04 85 c0 75 f7 33 c0 48 83 c4 20 5b c3 48 8b 41 08 48 8b 51 18 48 8b 49 10 ff 15 7d