uvm_fault(0xfffff000721e77c0, 0x6ac00d16, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at witness_checkorder+0xb5: movl 0x20(%r14),%r15d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
* 20917 44998 0 0 0x4000000 0K syz-executor
296335 19707 0 0 0 1 syz-executor
witness_checkorder(6ac00cf6,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(6ac00ce6) at mtx_enter+0x95 sys/kern/kern_lock.c:406
ifq_add_data(6ac00cce,fffff0006f9e3018) at ifq_add_data+0x31 sys/net/ifq.c:362
if_getdata(ffff800000c34000,fffff0006f9e3018) at if_getdata+0x244 sys/net/if.c:-1
rtm_ifchg(ffff800000c34000) at rtm_ifchg+0xfb sys/net/rtsock.c:1797
if_up(ffff800000c34000) at if_up+0x213 if_linkstate sys/net/if.c:1888 [inline]
if_up(ffff800000c34000) at if_up+0x213 sys/net/if.c:1856
loioctl(ffff800000c34000,8020690c,ffff800001644b00) at loioctl+0x146 sys/net/if_loop.c:291
in6_ifinit(ffff800000c34000,ffff800001644b00,1) at in6_ifinit+0x1ed sys/netinet6/in6.c:969
in6_update_ifa(ffff800000c34000,ffff80003c3c9e98,0) at in6_update_ifa+0x1878 sys/netinet6/in6.c:722
in6_ifattach_loopback(ffff800000c34000) at in6_ifattach_loopback+0x1d0 sys/netinet6/in6_ifattach.c:338
in6_ifattach(ffff800000c34000) at in6_ifattach+0x202 sys/netinet6/in6_ifattach.c:376
in6_ioctl_change_ifaddr(8080691a,ffff80003c3ca100,ffff800000c34000) at in6_ioctl_change_ifaddr+0x609 sys/netinet6/in6.c:349
ifioctl(ffff800010fbf510,8080691a,ffff80003c3ca100,ffff80002a22b240) at ifioctl+0x1714 pru_control sys/sys/protosw.h:353 [inline]
ifioctl(ffff800010fbf510,8080691a,ffff80003c3ca100,ffff80002a22b240) at ifioctl+0x1714 sys/net/if.c:2554
sys_ioctl(ffff80002a22b240,ffff80003c3ca2e0,ffff80003c3ca230) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
end trace frame: 0xffff80003c3ca2d0, count: 0
https://www.openbsd.org/ddb.html describes the minimum info required in bug
reports. Insufficient info makes it difficult to find and fix bugs.
ddb{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xfffff000721e77c0, 0x6ac00d16, 0, 1) -> e
ddb{0}> show kasan
No such command
ddb{0}> trace
witness_checkorder(6ac00cf6,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(6ac00ce6) at mtx_enter+0x95 sys/kern/kern_lock.c:406
ifq_add_data(6ac00cce,fffff0006f9e3018) at ifq_add_data+0x31 sys/net/ifq.c:362
if_getdata(ffff800000c34000,fffff0006f9e3018) at if_getdata+0x244 sys/net/if.c:-1
rtm_ifchg(ffff800000c34000) at rtm_ifchg+0xfb sys/net/rtsock.c:1797
if_up(ffff800000c34000) at if_up+0x213 if_linkstate sys/net/if.c:1888 [inline]
if_up(ffff800000c34000) at if_up+0x213 sys/net/if.c:1856
loioctl(ffff800000c34000,8020690c,ffff800001644b00) at loioctl+0x146 sys/net/if_loop.c:291
in6_ifinit(ffff800000c34000,ffff800001644b00,1) at in6_ifinit+0x1ed sys/netinet6/in6.c:969
in6_update_ifa(ffff800000c34000,ffff80003c3c9e98,0) at in6_update_ifa+0x1878 sys/netinet6/in6.c:722
in6_ifattach_loopback(ffff800000c34000) at in6_ifattach_loopback+0x1d0 sys/netinet6/in6_ifattach.c:338
in6_ifattach(ffff800000c34000) at in6_ifattach+0x202 sys/netinet6/in6_ifattach.c:376
in6_ioctl_change_ifaddr(8080691a,ffff80003c3ca100,ffff800000c34000) at in6_ioctl_change_ifaddr+0x609 sys/netinet6/in6.c:349
ifioctl(ffff800010fbf510,8080691a,ffff80003c3ca100,ffff80002a22b240) at ifioctl+0x1714 pru_control sys/sys/protosw.h:353 [inline]
ifioctl(ffff800010fbf510,8080691a,ffff80003c3ca100,ffff80002a22b240) at ifioctl+0x1714 sys/net/if.c:2554
sys_ioctl(ffff80002a22b240,ffff80003c3ca2e0,ffff80003c3ca230) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80003c3ca2e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3ca2e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc0ac82a2000, count: -16
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff80003c3c9930
rbx 0
rdx 0
rcx 0xffff80002a22b240
rax 0xffffffff83914ffe cpu_info_full_primary+0x1ffe
r8 0x90
r9 0x8080808080808080
r10 0x65728a56bbbf0c5a
r11 0x7ae290757c132d9d
r12 0x6ac00cfe
r13 0x9
r14 0x6ac00cf6
r15 0
rip 0xffffffff82c4d975 witness_checkorder+0xb5
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80003c3c9890
ss 0x10
witness_checkorder+0xb5: movl 0x20(%r14),%r15d
ddb{0}> show proc
PROC (syz-executor) tid=20917 pid=44998 tcnt=3 stat=onproc
flags process=0 proc=4000000<THREAD>
runpri=32, usrpri=66, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
forw=0xffffffffffffffff, list=0xffff80002a22a548,0xffff800045fe8fc0
process=0xffff800045fe66e0 user=0xffff80003c3c5000, vmspace=0xfffff000721e77c0
estcpu=16, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{0}> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
44998 499385 40562 0 2 0 0 syz-executor
*44998 20917 40562 0 7 0 0x4000000 syz-executor
44998 277713 40562 0 3 0 0x4000080 fsleep syz-executor
19707 296335 37175 0 7 0 0 syz-executor
19707 347043 37175 0 2 0 0x4000000 syz-executor
57577 19296 47908 0 2 0 0 syz-executor
18120 156102 21242 0 2 0 0 syz-executor
90917 474965 85709 0 2 0 0 syz-executor
51647 193547 88691 0 3 0x1000 0x2000 suspend syz-executor
51647 197849 88691 0 2 0x1000 0x4080000 syz-executor
51647 341387 88691 0 2 0x1000 0x4080000 syz-executor
74261 500881 80024 0 2 0x2 0 syz-executor
85349 361761 0 0 3 0x14000 0x200 acct acct
41124 99077 58820 0 2 0 0xc80 syz-executor
41124 35554 58820 0 3 0 0x4000080 ttyin syz-executor
41124 261462 58820 0 3 0 0x4000000 inode syz-executor
41124 368784 58820 0 3 0 0x4000080 fsleep syz-executor
47908 371760 80024 0 2 0x2 0xc80 syz-executor
40562 120074 80024 0 3 0x2 0x80 nanoslp syz-executor
58820 108180 80024 0 3 0x2 0x80 nanoslp syz-executor
37175 328651 80024 0 3 0x2 0x80 nanoslp syz-executor
21242 256706 80024 0 2 0x2 0xc80 syz-executor
85709 275617 80024 0 2 0x2 0xc80 syz-executor
88691 238929 80024 0 3 0x2 0x80 nanoslp syz-executor
80024 385023 52720 0 3 0x2 0x80 kqread syz-executor
52720 170829 50281 0 3 0x100002 0x88 sigsusp ksh
50281 253148 74384 0 3 0x10 0x88 kqread sshd-session
74384 345558 24929 0 3 0x12 0x80 kqread sshd-session
98667 342209 1 0 3 0x100003 0x80 ttyin getty
24929 482309 1 0 3 0 0x88 kqread sshd
46595 166189 7281 74 3 0x1100012 0x80 bpf pflogd
7281 155039 1 0 3 0 0x80 sbwait pflogd
34078 238728 27148 73 3 0x1100010 0x80 kqread syslogd
27148 166621 1 0 3 0x100002 0x80 sbwait syslogd
37504 214499 1 0 3 0x100000 0x80 kqread resolvd
5283 43784 72788 77 3 0x100012 0x80 kqread dhcpleased
21474 82419 72788 77 3 0x100012 0x80 kqread dhcpleased
72788 496932 1 0 3 0 0x80 kqread dhcpleased
84148 86779 0 0 3 0x14000 0x200 bored smr
23342 101288 0 0 2 0x14000 0x200 zerothread
22981 474977 0 0 3 0x14000 0x200 aiodoned aiodoned
93893 77796 0 0 3 0x14000 0x200 syncer update
86516 276149 0 0 3 0x14000 0x200 cleaner cleaner
20512 416896 0 0 3 0x14000 0x200 reaper reaper
99964 66553 0 0 3 0x14000 0x200 pgdaemon pagedaemon
25842 399592 0 0 3 0x14000 0x200 bored viomb
11294 411441 0 0 3 0x14000 0x40000200 acpi0 acpi0
14280 523446 0 0 3 0x14000 0x40000200 idle1
71231 445868 0 0 3 0x14000 0x200 bored softnet1
65981 43971 0 0 3 0x14000 0x200 bored softnet0
16799 315530 0 0 3 0x14000 0x200 smrbar systqmp
79335 73741 0 0 3 0x14000 0x200 bored systq
68442 349043 0 0 3 0x14000 0x200 tmoslp softclockmp
77657 225341 0 0 3 0x14000 0x40000200 tmoslp softclock
40145 58616 0 0 3 0x14000 0x40000200 idle0
1 466152 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb{0}> show all locks
Process 44998 (syz-executor) thread 0xffff80002a22b240 (20917)
exclusive rwlock netlock r = 0 (0xffffffff8396c0c0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 in6_ioctl_change_ifaddr+0x10b sys/netinet6/in6.c:291
#3 ifioctl+0x1714 pru_control sys/sys/protosw.h:353 [inline]
#3 ifioctl+0x1714 sys/net/if.c:2554
#4 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#5 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#5 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#6 Xsyscall+0x128
exclusive kernel_lock &kernel_lock r = 1 (0xffffffff83a0c140)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 ifioctl+0x47f if_unit sys/net/if.c:-1 [inline]
#1 ifioctl+0x47f sys/net/if.c:2195
#2 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#3 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#3 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#4 Xsyscall+0x128
Process 41124 (syz-executor) thread 0xffff800045fe8d18 (35554)
exclusive rrwlock inode r = 0 (0xfffff000701d8a08)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 spec_open+0x2f2 sys/kern/spec_vnops.c:151
#6 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138
#7 vn_open+0x7a5 sys/kern/vfs_vnops.c:183
#8 vndioctl+0xc43 sys/dev/vnd.c:458
#9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#10 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#11 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#12 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#12 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#13 Xsyscall+0x128
Process 41124 (syz-executor) thread 0xffff80002a32a030 (261462)
exclusive rrwlock inode r = 0 (0xfffff0000c06ba10)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320
#2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621
#3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527
#4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576
#5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431
#6 namei+0x7c1 sys/kern/vfs_lookup.c:250
#7 vn_open+0x178 sys/kern/vfs_vnops.c:146
#8 vndioctl+0xc43 sys/dev/vnd.c:458
#9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264
#10 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:537
#11 sys_ioctl+0x674 sys/kern/sys_generic.c:-1
#12 syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#12 syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
#13 Xsyscall+0x128
Process 16799 (systqmp) thread 0xffff800045ffe530 (315530)
shared rwlock systqmp r = 0 (0xffffffff839c1be8)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 taskq_thread+0x12a sys/kern/kern_task.c:442
#2 proc_trampoline+0x10
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11059 12147K 12165K 166960K 12288 0
pcb 21 12K 12K 166960K 51 0
rtable 210 7K 8K 166960K 589 0
pf 33 17K 24K 166960K 95 0
ifaddr 41 7K 7K 166960K 79 0
ifgroup 51 2K 2K 166960K 89 0
sysctl 2 1K 9K 166960K 6 0
counters 68 36K 37K 166960K 90 0
ioctlops 0 0K 4K 166960K 1505 0
iov 0 0K 24K 166960K 8 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1326 83K 84K 166960K 1636 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 3 0
VM map 2 1K 1K 166960K 2 0
sem 7 0K 0K 166960K 8 0
dirhash 12 2K 2K 166960K 12 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 17 61K 89K 166960K 353 0
proc 73 115K 164K 166960K 758 0
subproc 66 4K 4K 166960K 138 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 0 0K 0K 166960K 4 0
in_multi 85 5K 6K 166960K 178 0
ether_multi 1 0K 0K 166960K 1 0
mrt 0 0K 0K 166960K 9 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 67 307K 307K 166960K 67 0
exec 0 0K 1K 166960K 480 0
fusefs mount 1 32K 32K 166960K 1 0
tdb 3 0K 0K 166960K 3 0
VM swap 8 62K 64K 166960K 10 0
UVM amap 215 167K 176K 166960K 4602 0
UVM aobj 69 3K 3K 166960K 69 0
pinsyscall 42 84K 102K 166960K 1691 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 2 0
NDP 13 0K 2K 166960K 52 0
temp 38 9123K 9143K 166960K 12021 0
kqueue 14 22K 26K 166960K 39 0
SYN cache 2 16K 16K 166960K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 28 0 0 1 0 1 1 0 8 0
rtpcb 120 55 0 52 1 0 1 1 0 8 0
rtentry 176 189 0 98 6 0 6 6 0 8 0
unpcb 144 247 0 230 6 0 6 6 0 8 5
syncache 336 4 0 4 1 0 1 1 0 8 1
tcpcb 736 37 0 33 1 0 1 1 0 8 0
arp 136 32 0 15 1 0 1 1 0 8 0
inpcb 328 181 0 169 2 0 2 2 0 8 1
nd6 152 45 0 24 1 0 1 1 0 8 0
kcovpl 48 15 0 8 1 0 1 1 0 8 0
ppxss 1192 3 0 3 1 0 1 1 0 8 1
pffrag 232 1 0 0 1 0 1 1 0 482 0
pffrnode 88 1 0 0 1 0 1 1 0 8 0
pffrent 40 2 0 1 1 0 1 1 0 8 0
pfosfp 40 1428 0 1428 5 0 5 5 0 8 5
pfosfpen 112 1428 0 1428 21 0 21 21 0 8 21
pfrktable 1344 3 0 1 1 0 1 1 0 8 0
pfsrclim 320 1 0 1 1 0 1 1 0 8 1
pfanchor 1288 7 0 2 1 0 1 1 0 8 0
pfstitem 24 32 0 0 1 0 1 1 0 8 0
pfstkey 128 32 0 0 2 0 2 2 0 8 0
pfstate 448 32 0 0 4 0 4 4 0 8 0
pfrule 1360 23 0 16 2 1 1 2 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 773 0 358 29 0 29 29 0 8 3
art_table 40 774 0 358 5 0 5 5 0 8 0
art_node 32 189 0 100 1 0 1 1 0 8 0
sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0
semapl 72 6 0 1 1 0 1 1 0 8 0
shmpl 120 66 0 0 2 0 2 2 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 1850 0 366 93 0 93 93 0 8 0
ffsino 296 1850 0 366 115 0 115 115 0 8 0
nchpl 144 2191 0 462 65 0 65 65 0 8 0
vnodes 216 2109 0 0 118 0 118 118 0 8 0
namei 1024 8366 0 8365 4 1 3 3 0 8 2
percpumem 16 61 0 11 1 0 1 1 0 8 0
pfiaddrpl 120 1 0 0 1 0 1 1 0 8 0
kstatmem 264 47 0 22 3 0 3 3 0 8 1
scsiplug 72 1 0 1 1 0 1 1 0 8 1
scxspl 216 7380 0 7380 4 3 1 3 1 8 1
plimitpl 152 55 0 38 1 0 1 1 0 8 0
sigapl 424 655 0 607 7 0 7 7 0 8 1
knotepl 120 102 0 0 4 0 4 4 0 8 0
kqueuepl 224 49 0 38 1 0 1 1 0 8 0
pipepl 344 156 0 127 3 0 3 3 0 8 0
fdescpl 528 638 0 607 3 0 3 3 0 8 0
filepl 160 2789 0 2576 16 0 16 16 0 8 3
lockfpl 104 51 0 49 1 0 1 1 0 8 0
lockfspl 48 25 0 23 1 0 1 1 0 8 0
sessionpl 144 39 0 30 1 0 1 1 0 8 0
pgrppl 48 55 0 38 1 0 1 1 0 8 0
ucredpl 104 419 0 405 1 0 1 1 0 8 0
zombiepl 144 608 0 607 1 0 1 1 0 8 0
processpl 1240 655 0 607 5 0 5 5 0 8 0
procpl 664 860 0 804 7 0 7 7 0 8 1
sockpl 752 490 0 458 17 1 16 17 0 8 12
mcl64k 65536 3 0 0 1 0 1 1 0 8 0
mcl8k 8192 2 0 0 1 0 1 1 0 8 0
mcl4k 4096 133 0 0 17 0 17 17 0 8 0
mcl2k 2048 14 0 0 2 0 2 2 0 8 0
mextrefs 64 14 0 0 1 0 1 1 0 8 0
mtagpl 96 1 0 0 1 0 1 1 0 8 0
mbufpl 256 229 0 0 15 0 15 15 0 8 0
bufpl 272 2644 0 105 170 0 170 170 0 8 0
anonpl 32 4204 0 0 34 0 34 34 0 247 0
amapchunkpl 152 13204 0 12774 27 0 27 27 0 158 7
amappl16 200 2041 0 2021 8 3 5 5 0 8 3
amappl15 192 6 0 6 1 1 0 1 0 8 0
amappl14 184 521 0 520 1 0 1 1 0 8 0
amappl13 176 138 0 126 1 0 1 1 0 8 0
amappl12 168 911 0 884 2 0 2 2 0 8 0
amappl11 160 8 0 7 1 0 1 1 0 8 0
amappl10 152 66 0 51 1 0 1 1 0 8 0
amappl9 144 273 0 273 1 1 0 1 0 8 0
amappl8 136 123 0 121 1 0 1 1 0 8 0
amappl7 128 163 0 150 1 0 1 1 0 8 0
amappl6 120 231 0 229 1 0 1 1 0 8 0
amappl5 112 100 0 90 1 0 1 1 0 8 0
amappl4 104 331 0 311 1 0 1 1 0 8 0
amappl3 96 2318 0 2233 3 0 3 3 0 8 0
amappl2 88 801 0 729 2 0 2 2 0 8 0
amappl1 80 11720 0 11113 14 0 14 14 0 8 0
amappl 88 3732 0 3589 5 0 5 5 0 92 0
uvmvnodes 80 101 0 0 3 0 3 3 0 8 0
dma4096 4096 1 0 1 1 1 0 1 0 8 0
dma1024 1024 1 0 0 1 0 1 1 0 8 0
dma256 256 8 0 8 2 1 1 1 0 8 1
dma128 128 254 0 254 2 1 1 1 0 8 1
dma64 64 6 0 6 1 1 0 1 0 8 0
dma32 32 7 0 7 1 1 0 1 0 8 0
dma16 16 18 0 17 1 0 1 1 0 8 0
aobjpl 72 68 0 0 2 0 2 2 0 8 0
uaddrrnd 24 638 0 607 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 638 0 607 1 0 1 1 0 8 0
vmmpekpl 168 7064 0 7012 3 0 3 3 0 8 0
vmmpepl 168 50159 0 48287 88 0 88 88 0 357 5
vmsppl 488 637 0 607 5 0 5 5 0 8 0
rwobjpl 80 17371 0 16297 25 0 25 25 0 8 1
pdppl 4096 1283 0 1214 101 28 73 85 0 8 4
pvpl 32 11257 0 0 91 0 91 91 0 265 0
pmappl 256 637 0 607 3 0 3 3 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 452 0 32 12 0 12 12 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
witness_checkorder(6ac00cf6,9,0) at witness_checkorder+0xb5 sys/kern/subr_witness.c:779
mtx_enter(6ac00ce6) at mtx_enter+0x95 sys/kern/kern_lock.c:406
ifq_add_data(6ac00cce,fffff0006f9e3018) at ifq_add_data+0x31 sys/net/ifq.c:362
if_getdata(ffff800000c34000,fffff0006f9e3018) at if_getdata+0x244 sys/net/if.c:-1
rtm_ifchg(ffff800000c34000) at rtm_ifchg+0xfb sys/net/rtsock.c:1797
if_up(ffff800000c34000) at if_up+0x213 if_linkstate sys/net/if.c:1888 [inline]
if_up(ffff800000c34000) at if_up+0x213 sys/net/if.c:1856
loioctl(ffff800000c34000,8020690c,ffff800001644b00) at loioctl+0x146 sys/net/if_loop.c:291
in6_ifinit(ffff800000c34000,ffff800001644b00,1) at in6_ifinit+0x1ed sys/netinet6/in6.c:969
in6_update_ifa(ffff800000c34000,ffff80003c3c9e98,0) at in6_update_ifa+0x1878 sys/netinet6/in6.c:722
in6_ifattach_loopback(ffff800000c34000) at in6_ifattach_loopback+0x1d0 sys/netinet6/in6_ifattach.c:338
in6_ifattach(ffff800000c34000) at in6_ifattach+0x202 sys/netinet6/in6_ifattach.c:376
in6_ioctl_change_ifaddr(8080691a,ffff80003c3ca100,ffff800000c34000) at in6_ioctl_change_ifaddr+0x609 sys/netinet6/in6.c:349
ifioctl(ffff800010fbf510,8080691a,ffff80003c3ca100,ffff80002a22b240) at ifioctl+0x1714 pru_control sys/sys/protosw.h:353 [inline]
ifioctl(ffff800010fbf510,8080691a,ffff80003c3ca100,ffff80002a22b240) at ifioctl+0x1714 sys/net/if.c:2554
sys_ioctl(ffff80002a22b240,ffff80003c3ca2e0,ffff80003c3ca230) at sys_ioctl+0x674 sys/kern/sys_generic.c:-1
syscall(ffff80003c3ca2e0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3ca2e0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0xc0ac82a2000, count: -16
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x751951eb6db0, count: 12
ddb{1}> trace
x86_ipi_db(ffff80002999dff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394
x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27
end of kernel
end trace frame: 0x751951eb6db0, count: -3