Hi, I found 3 bugs while developing a micro-hypervisor using QEMU + KVM on Linux. However, I am not sure whether I should report them to QEMU's bug tracker or KVM's. Following https://www.linux-kvm.org/page/Bugs ;, I am asking here. Originally I thought that the bugs are in KVM, so I filed 2 of them in KVM's bug tracker. But thanks to Jim Mattson's comment, I realized that these bugs may be in QEMU. Do you know whether the following bugs should be posted to QEMU or KVM? For bug 1 and bug 2, if they should be posted to QEMU, should I close these bugs in KVM and create a new bug in QEMU? Bug 1: filed in https://bugzilla.kernel.org/show_bug.cgi?id=216002 ;. This is an assertion error while debugging QEMU + KVM with GDB. The guest is running a hypervisor (i.e. nested virtualization). Bug 2: filed in https://bugzilla.kernel.org/show_bug.cgi?id=216003 ;. This is another assertion error while debugging QEMU + KVM with GDB. The guest is running Windows. Bug 3: not filed yet. When I run a hypervisor as the guest, and the hypervisor tries to boot Windows, I see the following error printed error: kvm run failed Input/output error EAX=00000020 EBX=0000ffff ECX=00000000 EDX=0000ffff ESI=00000000 EDI=00002300 EBP=00000000 ESP=00006d8c EIP=00000018 EFL=00000046 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 ES =f000 000f0000 ffffffff 00809300 CS =cb00 000cb000 ffffffff 00809b00 SS =0000 00000000 ffffffff 00809300 DS =0000 00000000 ffffffff 00809300 FS =0000 00000000 ffffffff 00809300 GS =0000 00000000 ffffffff 00809300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00000000 00000000 IDT= 00000000 000003ff CR0=00000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=00000000 DR1=00000000 DR2=00000000 DR3=00000000 DR6=ffff0ff0 DR7=00000400 EFER=0000000000000000 Code=0e 07 31 c0 b9 00 10 8d 3e 00 03 fc f3 ab 07 b8 20 00 e7 7e <cb> 0f 1f 80 00 00 00 00 6b 76 6d 20 61 50 69 43 20 00 00 00 2d 02 00 00 d9 02 00 00 00 03 KVM_GET_PIT2 failed: Input/output error Thank you, Eric Li
