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Subject: [Bug 200585] [nlm] Fatal trap 9 when printing out KASSERT trying to
 run umount -f on an NFS share while it's trying to print out "lockd not
 responding" in nlm(4)
Date: Tue, 02 Jun 2015 04:32:09 +0000
X-Bugzilla-Reason: AssignedTo
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X-Bugzilla-Product: Base System
X-Bugzilla-Component: kern
X-Bugzilla-Version: 11.0-CURRENT
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: Affects Only Me
X-Bugzilla-Who: ngie@FreeBSD.org
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D200585

            Bug ID: 200585
           Summary: [nlm] Fatal trap 9 when printing out KASSERT trying to
                    run umount -f on an NFS share while it's trying to
                    print out "lockd not responding" in nlm(4)
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs@FreeBSD.org
          Reporter: ngie@FreeBSD.org

Repro:

- Check out head@r283754
- Build/install a kernel with the following options:

include GENERIC
options DEBUG_MEMGUARD

- Add the following config items to /etc/rc.conf:

rpcbind_enable=3D"YES"
nfs_client_enable=3D"YES"

- Mount an NFS share to /mnt.
- Do `svn co http://svn.freebsd.org/base/head /mnt/src`. If lockd's broken =
then
it
  should start printing out "lockd not responding".
- Let it go its course for a while.
- Run `umount -f /mnt`

Expected results:

The umount -f should succeed.

Actual results:

The kernel panics when running strlen(9) with a Fatal Trap 9 (it looks like
some of the
kernel structures were being torn down while it was trying to print out the
message):

# kgdb /boot/kernel/kernel vmcore.7
GNU gdb 6.1.1 [FreeBSD]
Copyright 2004 Free Software Foundation, Inc.
GDB is free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain condition=
s.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB.  Type "show warranty" for details.
This GDB was configured as "amd64-marcel-freebsd"...

Unread portion of the kernel message buffer:


Fatal trap 9: general protection fault while in kernel mode
cpuid =3D 5; apic id =3D 05
instruction pointer    =3D 0x20:0xffffffff80a2e51f
stack pointer            =3D 0x28:0xfffffe2f8fa0dc30
frame pointer            =3D 0x28:0xfffffe2f8fa0dc40
code segment        =3D base 0x0, limit 0xfffff, type 0x1b
            =3D DPL 0, pres 1, long 1, def32 0, gran 1
processor eflags    =3D interrupt enabled, resume, IOPL =3D 0
current process        =3D 1730 (svn)

#0  doadump (textdump=3D0) at pcpu.h:221
221    pcpu.h: No such file or directory.
    in pcpu.h
(kgdb) bt
#0  doadump (textdump=3D0) at pcpu.h:221
#1  0xffffffff8036503e in db_dump (dummy=3D<value optimized out>, dummy2=3D=
false,
dummy3=3D0, dummy4=3D0x0) at /usr/src/sys/ddb/db_command.c:533
#2  0xffffffff80364bb1 in db_command (cmd_table=3D0x0) at
/usr/src/sys/ddb/db_command.c:440
#3  0xffffffff80364844 in db_command_loop () at
/usr/src/sys/ddb/db_command.c:493
#4  0xffffffff803673db in db_trap (type=3D<value optimized out>, code=3D0) =
at
/usr/src/sys/ddb/db_main.c:251
#5  0xffffffff8099ef54 in kdb_trap (type=3D9, code=3D0, tf=3D<value optimiz=
ed out>)
at /usr/src/sys/kern/subr_kdb.c:654
#6  0xffffffff80e3b079 in trap_fatal (frame=3D0xfffffe2f8fa0db80, eva=3D<va=
lue
optimized out>) at /usr/src/sys/amd64/amd64/trap.c:854
#7  0xffffffff80e3ad20 in trap (frame=3D<value optimized out>) at
/usr/src/sys/amd64/amd64/trap.c:201
#8  0xffffffff80e1bd72 in calltrap () at
/usr/src/sys/amd64/amd64/exception.S:235
#9  0xffffffff80a2e51f in strlen (str=3D0xdeadc0dedeadc0de <Address
0xdeadc0dedeadc0de out of bounds>) at /usr/src/sys/libkern/strlen.c:98
#10 0xffffffff809a8dea in kvprintf (fmt=3D0xffffffff810969ba " @ %s:%d",
func=3D0xffffffff809a9e00 <snprintf_func>, arg=3D0xfffffe2f8fa0dd70, radix=
=3DCannot
access memory at address 0xa
)
    at /usr/src/sys/kern/subr_prf.c:796
#11 0xffffffff809a9de1 in vsnprintf (str=3D<value optimized out>, size=3D<v=
alue
optimized out>,=20
    format=3D0xdeadc0dedeadc0de <Address 0xdeadc0dedeadc0de out of bounds>,
ap=3D0xfefefefefefefeff) at /usr/src/sys/kern/subr_prf.c:529
#12 0xffffffff80961efa in kassert_panic (fmt=3D0xffffffff8109699f "mtx_lock=
() of
spin mutex %s @ %s:%d") at /usr/src/sys/kern/kern_shutdown.c:623
#13 0xffffffff80945ec6 in __mtx_lock_flags (c=3D0xfffff800220fb818, opts=3D=
0,
file=3D0xffffffff810cd0cc "/usr/src/sys/nlm/nlm_advlock.c", line=3D136)
    at /usr/src/sys/kern/kern_mutex.c:216
#14 0xffffffff80b6b640 in nlm_feedback (type=3D<value optimized out>, proc=
=3D<value
optimized out>, arg=3D0xfffffe2f8fa0e3c8)
    at /usr/src/sys/nlm/nlm_advlock.c:136
#15 0xffffffff80c36491 in clnt_dg_call (cl=3D<value optimized out>,
ext=3D0xfffffe2f8fa0e3d8, proc=3D2, args=3D0xfffff8012cf4ab00,=20
    resultsp=3D0xfffffe2f8fa0e038, utimeout=3D{tv_sec =3D 60, tv_usec =3D 0=
}) at
/usr/src/sys/rpc/clnt_dg.c:666
#16 0xffffffff80c3b6bd in clnt_call_private (cl=3D0xfffff801e13cb140,
ext=3D0xfffffe2f8fa0e3d8, proc=3D2, xargs=3D<value optimized out>,=20
    argsp=3D<value optimized out>, xresults=3D0xffffffff80b73a10 <xdr_nlm4_=
res>,
resultsp=3D0xfffffe2f8fa0e0b8, utimeout=3D{tv_sec =3D 60, tv_usec =3D 0})
    at /usr/src/sys/rpc/rpc_generic.c:761
#17 0xffffffff80b6ce80 in nlm4_lock_4 (argp=3D0xfefefefefefefeff, clnt_res=
=3D<value
optimized out>, clnt=3D0xdeadc0dedeadc0de, ext=3D0x0)
    at /usr/src/sys/nlm/nlm_prot_clnt.c:212
#18 0xffffffff80b6b979 in nlm_setlock (host=3D0xfffff80157ab2800,
ext=3D0xfffffe2f8fa0e3d8, vers=3D4, timo=3D0xfffffe2f8fa0e408,=20
    retries=3D<value optimized out>, vp=3D0xfffff80157a2d588, fl=3D<value o=
ptimized
out>, flags=3D64, svid=3D1730, fhlen=3D32, fh=3D0xfffffe2f8fa0e630,=20
    size=3D<value optimized out>, reclaim=3D0) at
/usr/src/sys/nlm/nlm_advlock.c:597
#19 0xffffffff80b6b05e in nlm_advlock_internal (vp=3D0xfffff80157a2d588,
id=3D<value optimized out>, op=3D<value optimized out>, fl=3D0xfffffe2f8fa0=
e958,=20
    flags=3D<value optimized out>, reclaim=3D0, unlock_vp=3D<value optimize=
d out>) at
/usr/src/sys/nlm/nlm_advlock.c:328
#20 0xffffffff80b6a58d in nlm_advlock (ap=3D<value optimized out>) at
/usr/src/sys/nlm/nlm_advlock.c:388
#21 0xffffffff8087b4ed in nfs_advlock (ap=3D<value optimized out>) at
/usr/src/sys/fs/nfsclient/nfs_clvnops.c:3095
#22 0xffffffff80f35e37 in VOP_ADVLOCK_APV (vop=3D<value optimized out>, a=
=3D<value
optimized out>) at vnode_if.c:2529
#23 0xffffffff80913ab3 in kern_fcntl (td=3D0xfffff80027b53960, fd=3D<value
optimized out>, cmd=3D<value optimized out>, arg=3D<value optimized out>)
    at vnode_if.h:1041
#24 0xffffffff80912f57 in kern_fcntl_freebsd (td=3D0xfffff80027b53960, fd=
=3D3,
cmd=3D<value optimized out>, arg=3D140737488344840)
    at /usr/src/sys/kern/kern_descrip.c:451
#25 0xffffffff80e3b8df in amd64_syscall (td=3D0xfffff80027b53960, traced=3D=
0) at
subr_syscall.c:133
#26 0xffffffff80e1c05b in Xfast_syscall () at
/usr/src/sys/amd64/amd64/exception.S:395
#27 0x00000008037b529a in ?? ()
Previous frame inner to this frame (corrupt stack?)
Current language:  auto; currently minimal
(kgdb) p version
$1 =3D 0xffffffff8149b370 "FreeBSD 11.0-CURRENT #0 9a1d54a(master): Sat May=
 30
04:02:59 UTC 2015\n    root@bakeoff-dut-101:/usr/obj/usr/src/sys/BAKEOFF\n"
(kgdb) frame 14
#14 0xffffffff80b6b640 in nlm_feedback (type=3D<value optimized out>, proc=
=3D<value
optimized out>, arg=3D0xfffffe2f8fa0e3c8)
    at /usr/src/sys/nlm/nlm_advlock.c:136
136        mtx_lock(&nmp->nm_mtx);
(kgdb) p *((struct nlm_feedback_arg *)arg)->nf_nmp
$11 =3D {nm_com =3D {nmcom_mtx =3D {lock_object =3D {lo_name =3D 0xdeadc0de=
deadc0de
<Address 0xdeadc0dedeadc0de out of bounds>, lo_flags =3D 3735929054,=20
        lo_data =3D 3735929054, lo_witness =3D 0xdeadc0dedeadc0de}, mtx_loc=
k =3D
16045693110842147038}, nmcom_flag =3D -559038242,=20
    nmcom_state =3D -559038242, nmcom_mountp =3D 0xdeadc0dedeadc0de, nmcom_=
timeo =3D
-559038242, nmcom_retry =3D -559038242,=20
    nmcom_hostname =3D 0xfffff800220fb838
"=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD"...,
nmcom_getinfo =3D 0xdeadc0dedeadc0de,=20
    nmcom_vinvalbuf =3D 0xdeadc0dedeadc0de}, nm_numgrps =3D -559038242,=20
  nm_fh =3D 0xfffff800220fb8a4
"=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD"...,
nm_fhsize =3D -559038242, nm_sotype =3D -559038242,=20
  nm_soproto =3D -559038242, nm_soflags =3D -559038242, nm_nam =3D
0xdeadc0dedeadc0de, nm_deadthresh =3D -559038242, nm_rsize =3D -559038242,=
=20
  nm_wsize =3D -559038242, nm_readdirsize =3D -559038242, nm_readahead =3D
-559038242, nm_wcommitsize =3D -559038242, nm_acdirmin =3D -559038242,=20
  nm_acdirmax =3D -559038242, nm_acregmin =3D -559038242, nm_acregmax =3D -=
559038242,=20
  nm_verf =3D 0xfffff800220fb968
"=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD"...,
nm_bufq =3D {tqh_first =3D 0xdeadc0dedeadc0de,=20
    tqh_last =3D 0xdeadc0dedeadc0de}, nm_bufqlen =3D -16162, nm_bufqwant =
=3D -8531,
nm_bufqiods =3D -559038242, nm_maxfilesize =3D 16045693110842147038,=20
  nm_rpcops =3D 0xdeadc0dedeadc0de, nm_tprintf_initial_delay =3D -559038242,
nm_tprintf_delay =3D -559038242, nm_secflavor =3D -559038242,=20
  nm_client =3D 0xdeadc0dedeadc0de, nm_timers =3D 0xfffff800220fb9b0,=20
  nm_principal =3D 0xfffff800220fb9f0
"=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD"...,
nm_mech_oid =3D 0xdeadc0dedeadc0de,=20
  nm_nametimeo =3D -559038242, nm_negnametimeo =3D -559038242, nm_clientid =
=3D
16045693110842147038, nm_fsid =3D {val =3D 0xfffff800220fba60},=20
  nm_lease_time =3D 3735929054, nm_last_renewal =3D -2401050962867404578}
(kgdb) p ((struct nlm_feedback_arg *)arg)->nf_nmp->nm_com
$12 =3D {nmcom_mtx =3D {lock_object =3D {lo_name =3D 0xdeadc0dedeadc0de <Ad=
dress
0xdeadc0dedeadc0de out of bounds>, lo_flags =3D 3735929054,=20
      lo_data =3D 3735929054, lo_witness =3D 0xdeadc0dedeadc0de}, mtx_lock =
=3D
16045693110842147038}, nmcom_flag =3D -559038242, nmcom_state =3D -55903824=
2,=20
  nmcom_mountp =3D 0xdeadc0dedeadc0de, nmcom_timeo =3D -559038242, nmcom_re=
try =3D
-559038242,=20
  nmcom_hostname =3D 0xfffff800220fb838
"=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=
=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=
=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=BD=EF=BF=
=BD"...,
nmcom_getinfo =3D 0xdeadc0dedeadc0de,=20
  nmcom_vinvalbuf =3D 0xdeadc0dedeadc0de}
(kgdb) p ((struct nlm_feedback_arg *)arg)->nf_nmp->nm_com.nmcom_mtx
$13 =3D {lock_object =3D {lo_name =3D 0xdeadc0dedeadc0de <Address 0xdeadc0d=
edeadc0de
out of bounds>, lo_flags =3D 3735929054, lo_data =3D 3735929054,=20
    lo_witness =3D 0xdeadc0dedeadc0de}, mtx_lock =3D 16045693110842147038}
(kgdb) p ((struct nlm_feedback_arg *)arg)->nf_nmp->nm_com.nmcom_mtx.mtx_lock
$14 =3D 16045693110842147038

--=20
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