# baseline (unpatched kernel #0 Jul 2 2026), f1_adaptec.img (total_disks=60000) on ata0-master
ata0: <ATA channel 0> on atapci0
interrupt uses mplock: ata0
panic: vm_fault: fault on stack guard, addr: 0xfffff8008df60000
cpuid = 0
vm_fault() at vm_fault+0x12eb
trap_pfault() at trap_pfault+0x9a
trap() at trap+0x17c
calltrap() at calltrap+0x9
--- trap 000000000000000c, rip = ffffffff8033330b, rsp = ffffffff817a97e0, rbp = ffffffff817a9880 ---
ata_raid_subdisk_attach() at ata_raid_subdisk_attach+0x42b 0xffffffff8033330b
device_doattach() at device_doattach+0x3af 0xffffffff8068d2ff
Debugger("panic")
# guest wedged in DDB; vm.sh status -> down; ssh never came up