Trying to mount root from ufs:/dev/ufs/FreeBSD_Install [ro,noatime]...
Root mount waiting for: usbus0 CAM usbus1
WARNING: WITNESS option enabled, expect reduced performance.
ugen1.1: <AMD EHCI root HUB> at usbus1
ugen0.1: <0x1022 XHCI root HUB> at usbus0
uhub0 on usbus0
uhub1 on usbus1
uhub1: <AMD EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus1
uhub0: <0x1022 XHCI root HUB, class 9/0, rev 3.00/1.00, addr 1> on usbus0
ada0 at ahcich0 bus 0 scbus0 target 0 lun 0
ada0: <M4-CT064M4SSD1 070H> ACS-2 ATA SATA 3.x device
ada0: Serial Number 000000001308092C5DEE
ada0: 600.000MB/s transfers (SATA 3.x, UDMA5, PIO 8192bytes)
ada0: Command Queueing enabled
ada0: 61056MB (125043311 512 byte sectors)
uhub0: 8 ports with 8 removable, self powered
uhub1: 2 ports with 2 removable, self powered
Root mount waiting for: usbus0 usbus1
ugen0.2: <Generic 4-Port USB 3.0 Hub> at usbus0
uhub2 on uhub0
uhub2: <Interrupt In Interface> on usbus0
uhub2: 4 ports with 3 removable, self powered
ugen1.2: <vendor 0x0438 product 0x7900> at usbus1
uhub3 on uhub1
uhub3: <vendor 0x0438 product 0x7900, class 9/0, rev 2.00/0.18, addr 2> on usbus1
Root mount waiting for: usbus0 usbus1
ugen0.3: <Realtek USB 10/100/1000 LAN> at usbus0
uhub3: 4 ports with 4 removable, self powered
ugen1.3: <SIGMACHIP USB Keyboard> at usbus1
ukbd0 on uhub3
ukbd0: <SIGMACHIP USB Keyboard, class 0/0, rev 1.10/1.50, addr 3> on usbus1
kbd2 at ukbd0
Root mount waiting for: usbus0
ugen0.4: <Generic Mass Storage Device> at usbus0
umass0 on uhub0
umass0: <Generic Mass Storage Device, class 0/0, rev 2.00/1.00, addr 3> on usbus0
umass0:  SCSI over Bulk-Only; quirks = 0xc100
umass0:1:0: Attached to scbus1
ugen0.5: <Generic 4-Port USB 2.0 Hub> at usbus0
uhub4 on uhub0
uhub4: <Generic 4-Port USB 2.0 Hub, class 9/0, rev 2.10/1.33, addr 4> on usbus0
uhub4: MTT enabled
uhub4: 4 ports with 3 removable, self powered
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Retrying command, 3 more tries remain
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
random: unblocking device.
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Retrying command, 2 more tries remain
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
Root mount waiting for: CAM
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Retrying command, 1 more tries remain
ugen0.4: <Generic Mass Storage Device> at usbus0 (disconnected)
umass0: at uhub0, port 7, addr 3 (disconnected)
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Retrying command, 0 more tries remain
(probe0:umass-sim0:0:0:0): INQUIRY. CDB: 12 00 00 00 24 00 
(probe0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(probe0:umass-sim0:0:0:0): Error 5, Retries exhausted
mountroot: waiting for device /dev/ufs/FreeBSD_Install...
umass0: detached
ugen1.4: <Generic Mass Storage Device> at usbus1
umass0 on uhub3
umass0: <Generic Mass Storage Device, class 0/0, rev 2.00/1.00, addr 4> on usbus1
umass0:  SCSI over Bulk-Only; quirks = 0xc100
umass0:1:0: Attached to scbus1
uma_zalloc_debug: zone "kenv" with the following non-sleepable locks held:
exclusive sleep mutex CAM device lock (CAM device lock) r = 0 (0xfffff80006060cd0) locked @ /usr/src/sys/cam/scsi/scsi_pass.c:674
stack backtrace:
#0 0xffffffff80c32891 at witness_debugger+0x71
#1 0xffffffff80c3382d at witness_warn+0x40d
#2 0xffffffff80efe586 at uma_zalloc_arg+0x46
#3 0xffffffff80b740ea at getenv_string_buffer+0x3a
#4 0xffffffff80b74817 at getenv_quad+0x17
#5 0xffffffff80b747e2 at getenv_int+0x12
#6 0xffffffff803a7f1a at daregister+0x1ea
#7 0xffffffff8037445b at cam_periph_alloc+0x57b
#8 0xffffffff803a7872 at daasync+0x2c2
#9 0xffffffff80381aa2 at xpt_async_process_dev+0x152
#10 0xffffffff8037d682 at xpt_async_process+0x312
#11 0xffffffff8037ddf2 at xpt_done_process+0x382
#12 0xffffffff8037fdb5 at xpt_done_td+0xf5
#13 0xffffffff80b830f0 at fork_exit+0x80
#14 0xffffffff8104150e at fork_trampoline+0xe
da0 at umass-sim0 bus 0 scbus1 target 0 lun 0
da0: <Mass Storage Device 1.00> Removable Direct Access SCSI device
da0: Serial Number 121220130416
da0: 40.000MB/s transfers
da0: 15240MB (31211520 512 byte sectors)
da0: quirks=0x2<NO_6_BYTE>
WARNING: / was not properly dismounted
intsmb0: <AMD FCH SMBus Controller> at device 20.0 on pci0
smbus0: <System Management Bus> on intsmb0
lo0: link state changed to UP
ure0 on uhub2
ure0: <Realtek USB 10/100/1000 LAN, class 0/0, rev 3.00/30.00, addr 2> on usbus0
uhid0 on uhub3
uhid0: <SIGMACHIP USB Keyboard, class 0/0, rev 1.10/1.50, addr 3> on usbus1
miibus1: <MII bus> on ure0
rgephy0: <RTL8251/8153 1000BASE-T media interface> PHY 0 on miibus1
rgephy0:  none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, 1000baseT-FDX-master, auto
ue0: <USB Ethernet> on ure0
ue0: Ethernet address: d0:37:45:77:56:3d
ue0: link state changed to DOWN