KVM vms are paused and cannot be deleted due to hardware error 0x0 Upon creation of instances via OpenStack nova api instances got stuck in spawning state. Then, after trying to delete instances they got stuck in deleting state. After investigation the following error was found: KVM: entry failed, hardware error 0x0 EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000623 ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 EIP=0000fff0 EFL=00000002 [-------] CPL=3 II=0 A20=1 SMM=0 HLT=0 ES =0000 00000000 0000ffff 00009300 CS =f000 000f0000 0000ffff 0000f300 SS =0000 00000000 0000ffff 0000f300 DS =0000 00000000 0000ffff 00009300 FS =0000 00000000 0000ffff 00009300 GS =0000 00000000 0000ffff 00009300 LDT=0000 00000000 0000ffff 00008200 TR =0000 00000000 0000ffff 00008b00 GDT= 00000000 0000ffff IDT= 00000000 0000ffff CR0=60000010 CR2=00000000 CR3=00000000 CR4=00000000 DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 DR6=00000000ffff0ff0 DR7=0000000000000400 EFER=0000000000000000 Code=28 95 66 ba 01 4a 03 00 66 89 d8 66 5b 66 5e e9 15 79 66 c3 5b e0 00 f0 30 36 2f 32 33 2f 39 39 00 fc 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 All instances were in paused state: root@node-7:~# virsh list setlocale: No such file or directory Id Name State ---------------------------------------------------- 4 instance-00000004 paused 5 instance-00000005 paused 6 instance-00000006 paused 7 instance-00000007 paused 8 instance-00000008 paused 9 instance-00000009 paused The only way to delete VM is to reset it and then resume it. After this, VM is deleted properly. OpenStack version: Havana on Ubuntu 12.04 KVM version: QEMU emulator version 1.2.0 (qemu-kvm-1.2.0+noroms-0ubuntu7.12.10, Debian), Copyright (c) 2003-2008 Fabrice Bellard