uvn_fp2 [was: Help with issue with mpt(4) driver]

[Patrick Welche <prlw1%cam.ac.uk@localhost>]

More details - so we now know that the page is BUSY. Sadly an
attempt at a core dump to a separate disk failed and this is
before I connect the serial port block to the motherboard...

Cheers,

Patrick


PID    LID S CPU FLAGS  STRUCT LWP *         NAME WAIT
13322    6 3   3     0  ffff fe82 013f 42c0  vlc  uvn_fp2

vlc: proc ffff fe81 702c 4cf8  vmspace/map ffff fe81 c79f e5c8   flags 4000
lwp 6  ffff fe82 013f 42c0  pcb ffff fe81 21ff 5d80
  stat 3 flags 0 cpu 3 pri 43
  wmesg uvn_fp2  wchan ffff 8000 0827 2390

PAGE 0xffff 8000 0827 2390:
  flags=0x4f<BUSY,WANTED,TABLED,CLEAN,FAKE>, pqflags=0x0, wire_count=0,
  pa=0x4468 8000
  uobject=0xffff fe81 8ef3 9270, uanon=0x0, offset=0x8ee 0000 loan_count=0
  [page ownership tracking disabled]
  checking object list
  page found on object list

OBJECT 0xffff fe81 8ef3 9270:
  locked=0, pgops=0xffff ffff 808f d9e0, npages=38064, refs=1

VNODE flags 0x30<MPSAFE,LOCKSWORK>
mp 0xffff fe81 0e37 a008  numoutput 0  size 0x1fe3d08f  writesize 0x1fe3d08f
data 0xffff fe81 5ea4 4900  writecount 0  holdcnt 6
tag VT_UFS(1) type VREG(1)
mount    0xffff fe81 0e37 a008
typedata 0xffff fe81 8a0f 74c8
v_lock   0xffff fe81 8ef3 9380

v_uobj.vmobjlock lock details:
lock address : 0xffff fe80 5d68 6640    type: sleep/adaptive
initialized  : 0xffff ffff 8046 52a5
shared holds = shared wanted = current cpu = 0
current lwp  : 0xffff fe82 1f55 3840  last held : 0   <--- LWP different...
last locked  : 0xffff ffff 8074 a6d2  unlocked*: 0xffff ffff 8074 a708
owner field  : 0 wait/spin : 0/0

Turnstile chain at 0xffff ffff 80c4 7e40
=> No active turnstile for this lock.


lwp_t ffff fe82 1f55 3840
system: pid 0  proc ffff ffff 80c3 1000 vmspace/map ffff ffff 80c6 a980 flags 
20002
  lwp 2 [idle/0]  ffff fe82 1f55 3840  pcb ffff fe81 0e07 8d80
    stat 7 flags 201 cpu 0 pri 0

mount:
  flag=MNT_LOG,MNT_LOCAL
  iflag=IMNT_MPSAFE,IMNT_HAS_TRANS,IMNT_DTYPE
  locked vnodes = 0xffff fe81 8ef3 9270

db{0}> show ncache fffffe818ef39270
name not found

lock address : 0xffff fe81 8ef3 9380  type: sleep/adaptive
initialized  : 0xffff ffff 8077 c329
shared holds : 1                      exclusive : 0
shared wanted: 0                      exclusive : 0
current cpu  : 0                      last held : 3
current lwp  : 0xffff fe82 1f55 3840  last held : 0xffff fe82 013f 42c0
last locked  : 0xffff ffff 802a b74c  unlocked* : 0xffff ffff 802a b7bd
owner/count  : 0x10  flags: 0

Turnstile chain at 0xffff ffff 80c4 80c0
=> No active turnstile for this lock.


db{0}> reboot 0x104
usbd_do_request: not in process context
usbd_do_request: not in process context
usbd_do_request: not in process context