backtrace on current..

FYI - newly installed:

ugen1.2: <vendor 0x8087 product 0x8000> at usbus1
uhub2 on uhub0
uhub2: <vendor 0x8087 product 0x8000, class 9/0, rev 2.00/0.05, addr 2> 
on usbus1
ugen0.2: <vendor 0x8087 product 0x8008> at usbus0
uhub3 on uhub1
uhub3: <vendor 0x8087 product 0x8008, class 9/0, rev 2.00/0.05, addr 2> 
on usbus0
uhub2: 8 ports with 8 removable, self powered
uhub3: 6 ports with 6 removable, self powered
ugen1.3: <CHESEN PS2 to USB Converter> at usbus1
ukbd0 on uhub2
ukbd0: <CHESEN PS2 to USB Converter, class 0/0, rev 1.10/0.10, addr 3> 
on usbus1
kbd2 at ukbd0
ugen1.4: <JMicron USB to ATA/ATAPI Bridge> at usbus1
umass0 on uhub2
umass0: <MSC Bulk-Only Transport> on usbus1
umass0:  SCSI over Bulk-Only; quirks = 0x4100
umass0:4:0: Attached to scbus4
ugen1.5: <Kingston DataTraveler 3.0> at usbus1
umass1 on uhub2
umass1: <Kingston DataTraveler 3.0, class 0/0, rev 2.10/0.01, addr 5> on 
usbus1
umass1:  SCSI over Bulk-Only; quirks = 0x8100
umass1:5:1: Attached to scbus5
(probe0:umass-sim0:0:0:0): REPORT LUNS. CDB: a0 00 00 00 00 00 00 00 00 
10 00 00
(probe0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(probe0:umass-sim0:0:0:0): SCSI status: Check Condition
(probe0:umass-sim0:0:0:0): SCSI sense: ILLEGAL REQUEST asc:20,0 (Invalid 
command operation code)
(probe0:umass-sim0:0:0:0): Error 22, Unretryable error
da1 at umass-sim1 bus 1 scbus5 target 0 lun 0
da1: <Kingston DataTraveler 3.0 1.00> Removable Direct Access SPC-4 SCSI 
device
da1: Serial Number 60A44C3FACC9FE118997019C
da1: 40.000MB/s transfers
da1: 29510MB (60437492 512 byte sectors)
da1: quirks=0x2<NO_6_BYTE>
Trying to mount root from ufs:/dev/da0p2 []...
WARNING: WITNESS option enabled, expect reduced performance.
da0 at umass-sim0 bus 0 scbus4 target 0 lun 0
da0: <JMB352 RAID-1 0X01> Fixed Direct Access SPC-4 SCSI device
da0: Serial Number 000000000000
da0: 40.000MB/s transfers
da0: 5723166MB (11721043968 512 byte sectors)
da0: quirks=0x2<NO_6_BYTE>
lock order reversal:
  1st 0xfffff80004f77608 ufs (ufs) _at_ /usr/src/sys/kern/vfs_lookup.c:713
  2nd 0xfffffe000080edc0 bufwait (bufwait) _at_ 
/usr/src/sys/ufs/ffs/ffs_vnops.c:283
  3rd 0xfffff80006aff248 ufs (ufs) _at_ /usr/src/sys/kern/vfs_subr.c:2598
stack backtrace:
#0 0xffffffff80c48773 at witness_debugger+0x73
#1 0xffffffff80c484bd at witness_checkorder+0xa7d
#2 0xffffffff80bb45dd at lockmgr_xlock_hard+0x6d
#3 0xffffffff80bb505e at __lockmgr_args+0x5fe
#4 0xffffffff80ef4365 at ffs_lock+0xa5
#5 0xffffffff81236d93 at VOP_LOCK1_APV+0x63
#6 0xffffffff80cc3715 at _vn_lock+0x65
#7 0xffffffff80cb1ee6 at vget+0x66
#8 0xffffffff80ca3fcc at vfs_hash_get+0xcc
#9 0xffffffff80eefc4f at ffs_vgetf+0x3f
#10 0xffffffff80ee5a32 at softdep_sync_buf+0xb62
#11 0xffffffff80ef5124 at ffs_syncvnode+0x234
#12 0xffffffff80ecad66 at ffs_truncate+0x716
#13 0xffffffff80efc909 at ufs_direnter+0x609
#14 0xffffffff80f055dd at ufs_makeinode+0x5fd
#15 0xffffffff80f01544 at ufs_create+0x34
#16 0xffffffff81234b30 at VOP_CREATE_APV+0x60
#17 0xffffffff80cc301f at vn_open_cred+0x2cf
random: unblocking device.
lo0: link state changed to UP
em0: link state changed to UP
ums0 on uhub2
ums0: <CHESEN PS2 to USB Converter, class 0/0, rev 1.10/0.10, addr 3> on 
usbus1
ums0: 5 buttons and [XYZ] coordinates ID=1
Security policy loaded: MAC/ntpd (mac_ntpd)
root_at_colossus:~ # uname -a
FreeBSD colossus.isux.com 13.0-CURRENT FreeBSD 13.0-CURRENT r346979 
GENERIC  amd64
root_at_colossus:~ #

-- 
Michelle Sullivan
http://www.mhix.org/