subsystem a900000
   cpu_mp_unleash(0)... Launching APs: 5 16 6 18 19 17 13 7 4 21 23 20 28 30 31 22 15 12 24 25 27 29 10 9 8 3 2 26 14 11 1
ada0 at ahcich1 bus 0 scbus1 target 0 lun 0
ada0: <Seagate BarraCuda SSD ZA500CM10002 STAS1024> ACS-2 ATA SATA 3.x device
ada0: Serial Number 7M000D4E
ada0: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 476940MB (976773168 512 byte sectors)
done.
   netisr_start(0)... done.
ada1 at ahcich2 bus 0 scbus2 target 0 lun 0
ada1: <Seagate BarraCuda SSD ZA1000CM10002 STAS1024> ACS-2 ATA SATA 3.x device
ada1: Serial Number 7M100TM9
ada1: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada1: Command Queueing enabled
ada1: 953869MB (1953525168 512 byte sectors)
   smp_intr_init(0)... ada2 at ahcich3 bus 0 scbus3 target 0 lun 0
ada2: <Seagate BarraCuda SSD ZA1000CM10002 STAS1024> ACS-2 ATA SATA 3.x device
ada2: Serial Number 7M1012K5
ada2: 600.000MB/s transfers (SATA 3.x, UDMA6, PIO 8192bytes)
ada2: Command Queueing enabled
ada2: 953869MB (1953525168 512 byte sectors)
done.
   taskqgroup_bind_if_config_tqg(0)... done.
nda0 at nvme0 bus 0 scbus4 target 0 lun 1
nda0: <PLEXTOR PX-512M9PeG 1.07 P02911102766>
nda0: nvme version 1.2 x4 (max x4) lanes PCIe Gen3 (max Gen3) link
nda0: 488386MB (1000215216 512 byte sectors)
   taskqgroup_bind_if_io_tqg(0)... done.
   taskqgroup_bind_softirq(0)... done.
subsystem a900001
   epoch_init_smp(0)... done.
subsystem b000000
   nfs_rootconf(0)... done.
   fhanew_init(0)... done.
subsystem d000000
   proc0_post(0)... done.
subsystem d800000
   selectinit(0)... done.
   sctp_syscalls_init(0)... done.
subsystem dc00000
   vnet_init_done(0)... done.
   vnet_register_sysuninit(&vnet_if_return_vnet_uninit)... done.
   vnet_register_sysinit(&vnet_sysinit_done_vnet_init)... done.
subsystem dffff9c
   linker_preload_finish(0)... done.
subsystem e000000
   kick_init(0)... done.
subsystem e400000
   vm_pageout_init(0)... Trying to mount root from ufs:/dev/ada0p2 []...
done.

fatal kernel trap:

   exception       = 0x380 (data segment exception)
   virtual address = 0x6f20636c7573748d
   dsisr           = 0x0
   srr0            = 0xc0000000029806c0 (0x6c06c0)
   srr1            = 0x9000000000009032
   current msr     = 0x9000000000009032
   lr              = 0xc000000002e137a4 (0xb537a4)
   frame           = 0xc0080000003f9280
   curthread       = 0xc00800009489b1c0
          pid = 1, comm = kernel

panic: data segment exception trap
cpuid = 0
time = 3
KDB: enter: panic
[ thread pid 1 tid 100002 ]
Stopped at      kdb_enter+0x78: ori     r0, r0, 0x0
db> bt
Tracing pid 1 tid 100002 td 0xc00800009489b1c0
0xc0080000003f8fd0: at vpanic+0x284
0xc0080000003f9090: at panic+0x40
0xc0080000003f90c0: at trap+0x530
0xc0080000003f9200: at powerpc_interrupt+0x1a0
0xc0080000003f9250: kernel DSE trap @ 0x6f20636c7573748d by _mtx_trylock_flags_+0x48: srr1=0x9000000000009032
            r1=0xc0080000003f9500 cr=0x28a20c88 xer=0x20040000 ctr=0xc000000002e1351c r2=0xc000000003330000 frame=0xc0080000003f9280
0xc0080000003f9500: at 0xc0080000003f953c
0xc0080000003f9540: at mmu_radix_page_wired_mappings+0x284
0xc0080000003f95f0: at pmap_page_wired_mappings+0x94
0xc0080000003f9630: at brelse+0x4a0
0xc0080000003f9720: at ffs_use_bread+0xc8
0xc0080000003f97d0: at readsuper+0x60
0xc0080000003f9860: at ffs_sbget+0xcc
0xc0080000003f98f0: at ffs_mount+0x1aac
0xc0080000003f9b30: at vfs_domount+0xeac
0xc0080000003f9de0: at vfs_donmount+0xb20
0xc0080000003fa010: at kernel_mount+0x58
0xc0080000003fa080: at parse_mount+0x5f4
0xc0080000003fa2e0: at vfs_mountroot+0x8f8
0xc0080000003fa700: at start_init+0x58
0xc0080000003fa830: at fork_exit+0xd8
0xc0080000003fa8c0: at fork_trampoline+0x18
0xc0080000003fa8f0: at -0x4
db>