Re: VMM: Fails to start VMs after 7.9 to snapshot upgrade

[Mike Larkin]

On Fri, Oct 02, 2026 at 11:43:27AM -0700, Mike Larkin wrote:
> On Fri, Oct 02, 2026 at 06:27:30PM +0000, SlowServers Admin wrote:
> > Hi Mike,
> >
> > Thank you for your replies!
> >
>
> I think I see what is going on. you have nrips but no decode assist and vmd is
> failing to fallback to the software fetch path. let me take a look.
>
> -ml

can you try this on the host?

Index: usr.sbin/vmd/x86_vm.c
===================================================================
RCS file: /cvs/src/usr.sbin/vmd/x86_vm.c,v
diff -u -p -r1.27 x86_vm.c
--- usr.sbin/vmd/x86_vm.c       22 Sep 2026 20:20:57 -0000      1.27
+++ usr.sbin/vmd/x86_vm.c       2 Oct 2026 19:31:47 -0000
@@ -729,6 +729,7 @@ vcpu_exit_eptviolation(struct vm_run_par
                                    "bytes from 0x%llx", __func__, pa);
                                break;
                        }
+                       ve->vee.vee_insn_len = len;
                }

                ret = insn_decode(ve, &insn);