On 10.07.19 22:31, Jan Kiszka wrote: > And on a Xeon D-1540, I'm not seeing a crash but a kvm entry failure when > resetting L1 while running Jailhouse: > > KVM: entry failed, hardware error 0x7 > EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000f61 > ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000 > EIP=0000fff0 EFL=00000246 [---Z-P-] CPL=0 II=0 A20=1 SMM=0 HLT=0 > ES =0000 00000000 0000ffff 00009300 > CS =f000 ffff0000 0000ffff 00a09b00 > SS =0000 00000000 0000ffff 00c09300 > 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=00000680 > DR0=0000000000000000 DR1=0000000000000000 DR2=0000000000000000 DR3=0000000000000000 > DR6=00000000ffff0ff0 DR7=0000000000000400 > EFER=0000000000000000 > Code=00 66 89 d8 66 e8 af a1 ff ff 66 83 c4 0c 66 5b 66 5e 66 c3 <ea> 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 > OK, looks like the feature diff was a red herring: Ralf found a server with even more features and without a crash, and I found familiar error messages in the kernel log of that Xeon D: kvm: vmptrld (null)/778000000000 failed kvm: vmclear fail: (null)/778000000000 Only difference: No crash, just that more graceful entry failure. Jan -- Siemens AG, Corporate Technology, CT RDA IOT SES-DE Corporate Competence Center Embedded Linux