The following reply was made to PR kern/183007; it has been noted by GNATS.
From: Anton Shterenlikht <me...@bris.ac.uk>
To: bug-follo...@freebsd.org
Cc:
Subject: RE: kern/183007: ia64: panic: deadlkres: possible deadlock detected
for 0xe0000000128ecd80, blocked for 900060 ticks
Date: Thu, 24 Oct 2013 10:01:38 +0100 (BST)
Using "call doadump", and then crashinfo
gives this core.txt file:
mech-as221.men.bris.ac.uk dumped core - see ./vmcore.6
Thu Oct 24 09:57:05 BST 2013
FreeBSD mech-as221.men.bris.ac.uk 10.0-CURRENT FreeBSD 10.0-CURRENT #12
r255488M: Tue Oct 22 15:42:23 BST 2013
r...@mech-as221.men.bris.ac.uk:/usr/obj/usr/src/sys/UZI ia64
panic: deadlkres: possible deadlock detected for 0xe000000011c49200, blocked
for 901124 ticks
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 conditions.
Type "show copying" to see the conditions.
There is absolutely no warranty for GDB. Type "show warranty" for details.
This GDB was configured as "ia64-marcel-freebsd"...
Cannot access memory at address 0xe0000040fffbdfb8
(kgdb) #0 0x0000000000000000 in ?? ()
(kgdb)
------------------------------------------------------------------------
ps -axl
UID PID PPID CPU PRI NI VSZ RSS MWCHAN STAT TT TIME
COMMAND
0 0 0 0 -8 0 0 0 - DLs - 121:04.40
[kernel]
0 1 0 0 20 0 10368 1112 wait DLs - 0:00.03
[init]
0 2 0 0 -16 0 0 0 idle DL - 0:00.00
[mpt_recovery0]
0 3 0 0 -16 0 0 0 idle DL - 0:00.00
[mpt_recovery1]
0 4 0 0 -16 0 0 0 waiting_ DL - 0:00.00
[sctp_iterator]
0 7 0 0 -16 0 0 0 ccb_scan DL - 0:00.00
[xpt_thrd]
0 8 0 0 -16 0 0 0 pmap pv LL - 0:00.48
[pagedaemon]
0 9 0 0 -16 0 0 0 - RL - 0:00.00
[vmdaemon]
0 10 0 0 -16 0 0 0 audit_wo DL - 0:00.00
[audit]
0 11 0 0 155 0 0 0 - RL - 252:01.23
[idle]
0 12 0 0 -76 0 0 0 - WL - 1:54.21
[intr]
0 13 0 0 -8 0 0 0 - DL - 1:06.94
[geom]
0 14 0 0 -16 0 0 0 - DL - 0:06.59
[rand_harvestq]
0 15 0 0 -16 0 0 0 tzpoll DL - 0:00.18
[acpi_thermal]
0 16 0 0 -68 0 0 0 - DL - 0:00.35
[usb]
0 17 0 0 155 0 0 0 pgzero DL - 0:00.00
[pagezero]
0 18 0 0 -16 0 0 0 psleep DL - 0:00.13
[bufdaemon]
0 19 0 0 16 0 0 0 syncer DL - 1:13.82
[syncer]
0 20 0 0 -16 0 0 0 vlruwt DL - 0:15.43
[vnlru]
0 21 0 0 -16 0 0 0 sdflush DL - 0:00.14
[softdepflush]
0 40 0 0 -8 0 0 0 e000000012252a18 DL - 4:05.62
[zfskern]
0 153 1 0 52 0 12064 1704 pause DWs - 0:00.00
[adjkerntz]
0 654 1 0 20 0 13856 1616 select Ds - 0:00.02
[devd]
0 792 1 0 20 0 12336 3032 select Ds - 0:00.09
[syslogd]
0 873 1 0 20 0 17288 4688 select Ds - 0:01.33
[ntpd]
0 932 1 0 20 0 22736 4672 select Ds - 0:00.02
[sshd]
0 935 1 0 20 0 24280 6368 - Rs - 0:00.50
[sendmail]
25 938 1 0 20 0 18752 4232 pause DWs - 0:00.00
[sendmail]
0 942 1 0 20 0 12488 3272 pmap pv LLs - 0:00.13
[cron]
0 978 1 0 52 0 12624 2296 select Ds - 0:00.00
[inetd]
0 1000 1 0 52 0 12312 3376 ttydcd D - 0:00.01
[getty]
0 1001 1 0 20 0 14128 4976 wait DWs - 0:00.00
[login]
0 1002 932 0 32 0 26304 9440 select Ds - 0:00.11
[sshd]
1001 1004 1002 0 20 0 26304 6784 select D - 0:13.09
[sshd]
1001 1005 1004 0 20 0 14536 7264 pause DWs - 0:00.00
[tcsh]
0 1012 1005 0 20 0 14104 4792 wait DW - 0:00.00 [su]
0 1015 1012 0 33 0 13352 5168 ttyin D+ - 0:00.16 [sh]
0 1309 1001 0 20 0 13352 5200 ttyin D+ - 0:00.17 [sh]
0 96150 932 0 34 0 26304 9632 select Ds - 0:00.00
[sshd]
1001 96152 96150 0 20 0 26304 6736 select D - 0:00.00
[sshd]
1001 96153 96152 0 52 0 14536 6016 pause DWs - 0:00.00
[tcsh]
1001 96156 96153 0 52 0 12920 6272 vm objec L - 0:00.00
[rsync]
1001 96157 96156 0 20 0 21112 7888 select D - 0:00.00
[rsync]
0 96187 942 0 20 0 12488 3320 piperd D - 0:00.00
[cron]
0 96189 96187 0 25 0 13352 4992 wait DWs - 0:00.00 [sh]
0 96191 96189 0 25 0 7960 3112 wait DW - 0:00.00
[lockf]
0 96192 96191 0 52 0 13352 4992 wait DW - 0:00.00 [sh]
0 96199 96192 0 52 0 13352 2464 wait DW - 0:00.00 [sh]
0 96200 96192 0 24 0 12248 3448 piperd D - 0:00.00
[mail]
0 96282 96199 0 52 0 13352 4864 wait DW - 0:00.00 [sh]
0 96283 96282 0 52 0 13352 4992 wait DW - 0:00.00 [sh]
0 96285 96283 0 52 0 7960 3112 wait DW - 0:00.00
[lockf]
0 96286 96285 0 52 0 13352 4992 wait DW - 0:00.00 [sh]
0 96293 96286 0 52 0 13352 2472 wait DW - 0:00.00 [sh]
0 96294 96286 0 52 0 12248 3440 piperd D - 0:00.00
[mail]
0 96295 96293 0 52 0 13352 5136 wait DW - 0:00.00 [sh]
0 96299 96295 0 20 0 12136 4160 vm page L - 0:00.00
[find]
0 96300 96295 0 52 0 13352 24 wait DW - 0:00.00 [sh]
0 96302 96300 0 52 0 12072 4176 piperd D - 0:00.00
[cat]
------------------------------------------------------------------------
vmstat -s
42430424 cpu context switches
99421538 device interrupts
4215788 software interrupts
76657815 traps
140567023 system calls
22 kernel threads created
19953 fork() calls
176205 vfork() calls
0 rfork() calls
0 swap pager pageins
0 swap pager pages paged in
0 swap pager pageouts
0 swap pager pages paged out
5015 vnode pager pageins
18555 vnode pager pages paged in
0 vnode pager pageouts
0 vnode pager pages paged out
0 page daemon wakeups
0 pages examined by the page daemon
0 pages reactivated
2207587 copy-on-write faults
340 copy-on-write optimized faults
72307484 zero fill pages zeroed
0 zero fill pages prezeroed
213 intransit blocking page faults
75448333 total VM faults taken
22715 page faults requiring I/O
0 pages affected by kernel thread creation
703913 pages affected by fork()
4057227 pages affected by vfork()
0 pages affected by rfork()
0 pages cached
84394336 pages freed
0 pages freed by daemon
0 pages freed by exiting processes
4609 pages active
433449 pages inactive
2026 pages in VM cache
319481 pages wired down
12179 pages free
8192 bytes per page
216313539 total name lookups
cache hits (90% pos + 5% neg) system 0% per-directory
deletions 0%, falsehits 0%, toolong 0%
------------------------------------------------------------------------
vmstat -m
vmstat: memstat_kvm_malloc: invalid kernel virtual address
Type InUse MemUse HighUse Requests Size(s)
------------------------------------------------------------------------
vmstat -z
vmstat: memstat_kvm_uma: KVM short read
ITEM SIZE LIMIT USED FREE REQ FAIL SLEEP
------------------------------------------------------------------------
vmstat -i
interrupt total rate
clock 85559128 425667
uart0 4936 24
mpt0 2060488 10251
mpt1 1367156 6801
fxp0 10067 50
bge0 1075390 5350
Total 90077165 448145
------------------------------------------------------------------------
pstat -T
110/40000 files
0M/8166M swap space
------------------------------------------------------------------------
pstat -s
Device 1K-blocks Used Avail Capacity
/dev/da0p3 8362912 0 8362912 0%
------------------------------------------------------------------------
iostat
iostat: kvm_read(_tk_nin): invalid kernel virtual address
iostat: disabling TTY statistics
da0 da1 da2 cpu
KB/t tps MB/s KB/t tps MB/s KB/t tps MB/s us ni sy in id
13.99 3311 45.25 30.71 7104 213.07 31.32 6971 213.22 13 0 46 0 40
------------------------------------------------------------------------
ipcs -a
ipcs: shmsegs: invalid kernel virtual address
Message Queues:
T ID KEY MODE OWNER GROUP CREATOR CGROUP
CBYTES QNUM QBYTES LSPID
LRPID STIME RTIME CTIME
------------------------------------------------------------------------
ipcs -T
msginfo:
msgmax: 16384 (max characters in a message)
msgmni: 40 (# of message queues)
msgmnb: 2048 (max characters in a message queue)
msgtql: 40 (max # of messages in system)
msgssz: 8 (size of a message segment)
msgseg: 2048 (# of message segments in system)
shminfo:
shmmax: 1073741824 (max shared memory segment size)
shmmin: 1 (min shared memory segment size)
shmmni: 192 (max number of shared memory identifiers)
shmseg: 128 (max shared memory segments per process)
shmall: 131072 (max amount of shared memory in pages)
seminfo:
semmni: 50 (# of semaphore identifiers)
semmns: 340 (# of semaphores in system)
semmnu: 150 (# of undo structures in system)
semmsl: 340 (max # of semaphores per id)
semopm: 100 (max # of operations per semop call)
semume: 50 (max # of undo entries per process)
semusz: 632 (size in bytes of undo structure)
semvmx: 32767 (semaphore maximum value)
semaem: 16384 (adjust on exit max value)
------------------------------------------------------------------------
nfsstat
Client Info:
Rpc Counts:
Getattr Setattr Lookup Readlink Read Write Create Remove
0 0 0 0 0 0 0 0
Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access
0 0 0 0 0 0 0 0
Mknod Fsstat Fsinfo PathConf Commit
0 0 0 0 0
Rpc Info:
TimedOut Invalid X Replies Retries Requests
0 0 0 0 0
Cache Info:
Attr Hits Misses Lkup Hits Misses BioR Hits Misses BioW Hits Misses
0 0 0 0 0 0 0 0
BioRLHits Misses BioD Hits Misses DirE Hits Misses Accs Hits Misses
0 0 0 0 0 0 0 0
Server Info:
Getattr Setattr Lookup Readlink Read Write Create Remove
0 0 0 0 0 0 0 0
Rename Link Symlink Mkdir Rmdir Readdir RdirPlus Access
0 0 0 0 0 0 0 0
Mknod Fsstat Fsinfo PathConf Commit
0 0 0 0 0
Server Ret-Failed
0
Server Faults
0
Server Cache Stats:
Inprog Idem Non-idem Misses
0 0 0 0
Server Write Gathering:
WriteOps WriteRPC Opsaved
0 0 0
------------------------------------------------------------------------
netstat -s
tcp:
282995 packets sent
223922 data packets (62082838 bytes)
695403 data packets (599610 bytes) retransmitted
618576506 data packets unnecessarily retransmitted
0 resends initiated by MTU discovery
56310 ack-only packets (202761 delayed)
0 URG only packets
0 window probe packets
9036 window update packets
1592 control packets
124318 packets received
33423 acks (for 15875451 bytes)
385 duplicate acks
1288 acks for unsent data
94315 packets (110672333 bytes) received in-sequence
4 completely duplicate packets (739 bytes)
1496 old duplicate packets
1349 packets with some dup. data (568 bytes duped)
198374 out-of-order packets (100900200 bytes)
3 packets (1 byte) of data after window
470899 window probes
1496 window update packets
77109 packets received after close
3 discarded for bad checksums
0 discarded for bad header offset fields
3 discarded because packet too short
3 discarded due to memory problems
198359 connection requests
6710 connection accepts
339 bad connection attempts
0 listen queue overflows
1 ignored RSTs in the window
336 connections established (including accepts)
540 connections closed (including 1469 drops)
246 connections updated cached RTT on close
360 connections updated cached RTT variance on close
310 connections updated cached ssthresh on close
1 embryonic connection dropped
493485 segments updated rtt (of 73632 attempts)
1542 retransmit timeouts
55014893 connections dropped by rexmit timeout
56738 persist timeouts
0 connections dropped by persist timeout
0 Connections (fin_wait_2) dropped because of timeout
17 keepalive timeouts
259207 keepalive probes sent
0 connections dropped by keepalive
13190 correct ACK header predictions
85152 correct data packet header predictions
99 syncache entries added
2 retransmitted
1 dupsyn
0 dropped
115 completed
0 bucket overflow
0 cache overflow
0 reset
0 stale
0 aborted
0 badack
0 unreach
0 zone failures
124 cookies sent
115 cookies received
3 hostcache entries added
0 bucket overflow
0 SACK recovery episodes
0 segment rexmits in SACK recovery episodes
0 byte rexmits in SACK recovery episodes
6 SACK options (SACK blocks) received
0 SACK options (SACK blocks) sent
0 SACK scoreboard overflow
0 packets with ECN CE bit set
0 packets with ECN ECT(0) bit set
0 packets with ECN ECT(1) bit set
0 successful ECN handshakes
0 times ECN reduced the congestion window
udp:
10210 datagrams received
0 with incomplete header
0 with bad data length field
0 with bad checksum
0 with no checksum
0 dropped due to no socket
9413 broadcast/multicast datagrams undelivered
0 dropped due to full socket buffers
0 not for hashed pcb
797 delivered
2060 datagrams output
0 times multicast source filter matched
ip:
133621 total packets received
0 bad header checksums
0 with size smaller than minimum
0 with data size < data length
1 with ip length > max ip packet size
0 with header length < data size
298 with data length < header length
638 with bad options
1523 with incorrect version number
734107 fragments received
462943 fragments dropped (dup or out of space)
0 fragments dropped after timeout
0 packets reassembled ok
132252 packets for this host
1369 packets for unknown/unsupported protocol
0 packets forwarded (0 packets fast forwarded)
0 packets not forwardable
0 packets received for unknown multicast group
0 redirects sent
285289 packets sent from this host
220 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
339 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
1687 tunneling packets that can't find gif
75478 datagrams with bad address in header
icmp:
0 calls to icmp_error
0 errors not generated in response to an icmp message
Output histogram:
echo reply: 2
domain name request: 9
1 message with bad code fields
0 messages less than the minimum length
0 messages with bad checksum
0 messages with bad length
1369 multicast echo requests ignored
0 multicast timestamp requests ignored
Input histogram:
echo reply: 306
echo: 1371
IPv6 where-are-you: 297
2 message responses generated
0 invalid return addresses
0 no return routes
igmp:
0 messages received
0 messages received with too few bytes
0 messages received with wrong TTL
0 messages received with bad checksum
0 V1/V2 membership queries received
0 V3 membership queries received
0 membership queries received with invalid field(s)
0 general queries received
0 group queries received
0 group-source queries received
0 group-source queries dropped
0 membership reports received
0 membership reports received with invalid field(s)
0 membership reports received for groups to which we belong
0 V3 reports received without Router Alert
0 membership reports sent
arp:
27 ARP requests sent
7 ARP replies sent
18168 ARP requests received
6 ARP replies received
56996 ARP packets received
0 total packets dropped due to no ARP entry
24 ARP entrys timed out
0 Duplicate IPs seen
ip6:
0 total packets received
0 with size smaller than minimum
0 with data size < data length
0 with bad options
0 with incorrect version number
5 fragments received
0 fragments dropped (dup or out of space)
0 fragments dropped after timeout
0 fragments that exceeded limit
0 packets reassembled ok
5 packets for this host
0 packets forwarded
0 packets not forwardable
0 redirects sent
3 packets sent from this host
0 packets sent with fabricated ip header
0 output packets dropped due to no bufs, etc.
14 output packets discarded due to no route
0 output datagrams fragmented
0 fragments created
0 datagrams that can't be fragmented
0 packets that violated scope rules
0 multicast packets which we don't join
Input histogram:
ISOIP: 734405
Mbuf statistics:
0 one mbuf
two or more mbuf:
(null)= 1
1 one ext mbuf
0 two or more ext mbuf
0 packets whose headers are not contiguous
0 tunneling packets that can't find gif
0 packets discarded because of too many headers
0 failures of source address selection
Source addresses selection rule applied:
icmp6:
0 calls to icmp6_error
0 errors not generated in response to an icmp6 message
0 errors not generated because of rate limitation
Output histogram:
neighbor solicitation: 2
0 messages with bad code fields
0 messages < minimum length
0 bad checksums
0 messages with bad length
Input histogram:
#232: 99
#233: 115
#234: 3
Histogram of error messages to be generated:
0 no route
0 administratively prohibited
0 beyond scope
0 address unreachable
0 port unreachable
0 packet too big
0 time exceed transit
0 time exceed reassembly
0 erroneous header field
0 unrecognized next header
0 unrecognized option
0 redirect
0 unknown
0 message responses generated
0 messages with too many ND options
0 messages with bad ND options
0 bad neighbor solicitation messages
0 bad neighbor advertisement messages
0 bad router solicitation messages
0 bad router advertisement messages
1 bad redirect message
0 path MTU changes
rip6:
0 messages received
0 checksum calculations on inbound
9 messages with bad checksum
0 messages dropped due to no socket
0 multicast messages dropped due to no socket
1 message dropped due to full socket buffers
18446744073709551606 delivered
0 datagrams output
------------------------------------------------------------------------
netstat -m
netstat: memstat_kvm_all: invalid kernel virtual address
------------------------------------------------------------------------
netstat -idW
Name Mtu Network Address Ipkts Ierrs Idrop Opkts
Oerrs Coll Drop
fxp0 1500 <Link#1> 00:11:0a:31:e6:0a 10070 0 0 0
0 0 0
fxp0 1500 10.10.10.0 10.10.10.13 1666 - - 0
- - -
fxp0 1500 fe80::211:aff fe80::211:aff:fe3 0 - - 0
- - -
bge0 1500 <Link#2> 00:11:0a:31:46:06 914712 0 0 748267
0 0 0
bge0 1500 137.222.187.0 mech-as221 845982 - - 748186
- - -
bge0 1500 fe80::211:aff fe80::211:aff:fe3 0 - - 2
- - -
lo0 16384 <Link#3> 46 0 0 46
0 0 0
lo0 16384 localhost ::1 0 - - 0
- - -
lo0 16384 fe80::1%lo0 fe80::1 0 - - 0
- - -
lo0 16384 your-net localhost 46 - - 46
- - -
------------------------------------------------------------------------
netstat -anr
Routing tables
Internet:
Destination Gateway Flags Refs Use Netif Expire
default 137.222.187.250 UGS 0 547946 bge0
10.10.10.0/24 link#1 U 0 0 fxp0
10.10.10.13 link#1 UHS 0 0 lo0
127.0.0.1 link#3 UH 0 46 lo0
137.222.187.0/24 link#2 U 0 200240 bge0
137.222.187.221 link#2 UHS 0 0 lo0
Internet6:
Destination Gateway Flags
Netif Expire
::/96 ::1 UGRS lo0
::1 link#3 UH lo0
::ffff:0.0.0.0/96 ::1 UGRS lo0
fe80::/10 ::1 UGRS lo0
fe80::%fxp0/64 link#1 U fxp0
fe80::211:aff:fe31:e60a%fxp0 link#1 UHS lo0
fe80::%bge0/64 link#2 U bge0
fe80::211:aff:fe31:4606%bge0 link#2 UHS lo0
fe80::%lo0/64 link#3 U lo0
fe80::1%lo0 link#3 UHS lo0
ff01::%fxp0/32 fe80::211:aff:fe31:e60a%fxp0 U fxp0
ff01::%bge0/32 fe80::211:aff:fe31:4606%bge0 U bge0
ff01::%lo0/32 ::1 U lo0
ff02::/16 ::1 UGRS lo0
ff02::%fxp0/32 fe80::211:aff:fe31:e60a%fxp0 U fxp0
ff02::%bge0/32 fe80::211:aff:fe31:4606%bge0 U bge0
ff02::%lo0/32 ::1 U lo0
------------------------------------------------------------------------
netstat -anA
netstat: kvm_read: Invalid argument
netstat: kvm_read: Invalid argument
Active Internet connections (including servers)
Tcpcb Proto Recv-Q Send-Q Local Address Foreign Address
(state)
e000000013417d18 udp4 0 0 127.0.0.1.123 *.*
e000000013418000 udp6 0 0 fe80::1%lo0.123 *.*
e000000013418188 udp6 0 0 ::1.123 *.*
e000000013418310 udp6 0 0 fe80::211:aff:fe.1 *.*
e000000013418498 udp4 0 0 137.222.187.221.12 *.*
e000000013418620 udp6 0 0 fe80::211:aff:fe.1 *.*
e0000000134187a8 udp4 0 0 10.10.10.13.123 *.*
e000000013418930 udp6 0 0 *.123 *.*
e000000013418ab8 udp4 0 0 *.123 *.*
e00000001340b880 udp4 0 0 *.514 *.*
e00000001340ba08 udp6 0 0 *.514 *.*
Active UNIX domain sockets
Address Type Recv-Q Send-Q Inode Conn Refs Nextref Addr
e0000000135dec30 dgram 0 0 0 e0000000135cb860 0
e0000000135df0e0
e0000000135df0e0 dgram 0 0 0 e0000000135cb860 0
e0000000135df3b0
e0000000135df2c0 dgram 0 0 0 e0000000135df4a0 0
0
e0000000135df3b0 dgram 0 0 0 e0000000135cb860 0
e0000000135cb770
e0000000135cb770 dgram 0 0 0 e0000000135cb860 0
0
e0000000135cb860 dgram 0 0 e0000000133b09c0 0
e0000000135dec30 0 /var/run/logpriv
e0000000135df4a0 dgram 0 0 e0000000135ccea0 0
e0000000135df2c0 0 /var/run/log
------------------------------------------------------------------------
netstat -aL
netstat: kvm_read: Invalid argument
netstat: kvm_read: Invalid argument
Current listen queue sizes (qlen/incqlen/maxqlen)
Proto Listen Local Address
------------------------------------------------------------------------
fstat
Segmentation fault
------------------------------------------------------------------------
dmesg
dmesg: kvm_read:
------------------------------------------------------------------------
kernel config
options CONFIG_AUTOGENERATED
ident UZI
machine ia64
cpu ITANIUM2
makeoptions MODULES_OVERRIDE=geom/geom_part opensolaris zfs acl_nfs4
acl_posix1e
makeoptions DEBUG=-g
options USB_DEBUG
options TEXTDUMP_VERBOSE
options TEXTDUMP_PREFERRED
options DIAGNOSTIC
options DEBUG_VFS_LOCKS
options DEBUG_LOCKS
options MALLOC_DEBUG_MAXZONES=8
options WITNESS_SKIPSPIN
options WITNESS
options INVARIANT_SUPPORT
options INVARIANTS
options DEADLKRES
options GDB
options DDB
options KDB_TRACE
options KDB
options _KPOSIX_PRIORITY_SCHEDULING
options QUOTA
options UFS_GJOURNAL
options UFS_DIRHASH
options UFS_ACL
options SYSVSHM
options SYSVSEM
options SYSVMSG
options STACK
options SOFTUPDATES
options SMP
options SCTP
options SCSI_DELAY=5000
options SCHED_ULE
options PSEUDOFS
options PROCFS
options PROCDESC
options PRINTF_BUFR_SIZE=128
options PREEMPTION
options P1003_1B_SEMAPHORES
options NFS_ROOT
options NFSD
options NFSLOCKD
options NFSCL
options MSDOSFS
options MD_ROOT
options MAC
options KTRACE
options INET6
options INET
options INCLUDE_CONFIG_FILE
options GEOM_LABEL
options FFS
options TMPFS
options NULLFS
options FDESCFS
options COMPAT_FREEBSD7
options CD9660
options CAPABILITIES
options CAPABILITY_MODE
options AUDIT
options NEW_PCIB
options GEOM_PART_MBR
options GEOM_PART_GPT
options GEOM_PART_BSD
device acpi
device io
device mem
device uart_ns8250
device miibus
device pci
device scbus
device usb
device mpt
device cd
device da
device pass
device ehci
device ohci
device uhci
device umass
device bge
device fxp
device ether
device faith
device gif
device loop
device md
device puc
device random
device tun
device uart
device vlan
device firmware
------------------------------------------------------------------------
ddb capture buffer
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