uvm_fault(0xfffffd806bcfd008, 0x2b0, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      vm_terminate+0xb0:      movq    0x2b0(%r12),%r13
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
*366930  66315      0   0x8000000  0x4000000    1  syz-executor
vm_terminate(ffff80002a366000) at vm_terminate+0xb0 sys/dev/vmm/vmm.c:674
vmmioctl(a00,80045604,ffff80002a366000,1,ffff80002a03f458) at vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248
VOP_IOCTL(fffffd806dd96290,80045604,ffff80002a366000,1,fffffd807f7d3000,ffff80002a03f458) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
vn_ioctl(fffffd8056e64b48,80045604,ffff80002a366000,ffff80002a03f458) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525
sys_ioctl(ffff80002a03f458,ffff80002a3661e0,ffff80002a366130) at sys_ioctl+0x67c
syscall(ffff80002a3661e0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline]
syscall(ffff80002a3661e0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x15fa28d0130, count: 8
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports.  Insufficient info makes it difficult to find and fix bugs.