uvm_fault(0xfffffa80669dcd80, 0x3008, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at ip6_freemoptions+0x65: movq 0x8(%r15),%r13
TID PID UID PRFLAGS PFLAGS CPU COMMAND
ip6_freemoptions(ffff800000c438d0) at ip6_freemoptions+0x65 sys/netinet6/ip6_output.c:2147
in_pcbdetach(fffffa806fd27e18) at in_pcbdetach+0x122 sys/netinet/in_pcb.c:608
udp_detach(ffff800001626018) at udp_detach+0x5a sys/netinet/udp_usrreq.c:1158
soclose(ffff800001626018,0) at soclose+0xb0 pru_detach sys/sys/protosw.h:281 [inline]
soclose(ffff800001626018,0) at soclose+0xb0 sys/kern/uipc_socket.c:403
soo_close(fffffa806d6e2978,ffff800045ffd760) at soo_close+0x56 sys/kern/sys_socket.c:-1
fdrop(fffffa806d6e2978,ffff800045ffd760) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffa806d6e2978,ffff800045ffd760) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff800045ffd760) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff800045ffd760,0,0,1) at exit1+0x595 sys/kern/kern_exit.c:215
sys_exit(ffff800045ffd760,ffff80002a2ddff0,ffff80002a2ddf40) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2ddff0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2ddff0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ee2d24bb6d0, count: 3
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{1}>
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffa80669dcd80, 0x3008, 0, 1) -> e
ddb{1}> show kasan
No such command
ddb{1}> trace
ip6_freemoptions(ffff800000c438d0) at ip6_freemoptions+0x65 sys/netinet6/ip6_output.c:2147
in_pcbdetach(fffffa806fd27e18) at in_pcbdetach+0x122 sys/netinet/in_pcb.c:608
udp_detach(ffff800001626018) at udp_detach+0x5a sys/netinet/udp_usrreq.c:1158
soclose(ffff800001626018,0) at soclose+0xb0 pru_detach sys/sys/protosw.h:281 [inline]
soclose(ffff800001626018,0) at soclose+0xb0 sys/kern/uipc_socket.c:403
soo_close(fffffa806d6e2978,ffff800045ffd760) at soo_close+0x56 sys/kern/sys_socket.c:-1
fdrop(fffffa806d6e2978,ffff800045ffd760) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffa806d6e2978,ffff800045ffd760) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff800045ffd760) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff800045ffd760,0,0,1) at exit1+0x595 sys/kern/kern_exit.c:215
sys_exit(ffff800045ffd760,ffff80002a2ddff0,ffff80002a2ddf40) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2ddff0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2ddff0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ee2d24bb6d0, count: -12
ddb{1}> show registers
rdi 0xffff800000c438d0
rsi 0x100
rbp 0xffff80002a2ddc50
rbx 0x3
rdx 0
rcx 0xffff800045ffd760
rax 0xffff80002999dff0
r8 0xffffffffffffffff
r9 0x1
r10 0x5cde83ea0ea607b0
r11 0x55fcc2ac5b215277
r12 0
r13 0x100
r14 0xffff800000c438d0
r15 0x3000 __ALIGN_SIZE+0x2000
rip 0xffffffff81569cd5 ip6_freemoptions+0x65
cs 0x8
rflags 0x10206 __ALIGN_SIZE+0xf206
rsp 0xffff80002a2ddc10
ss 0x10
ip6_freemoptions+0x65: movq 0x8(%r15),%r13
ddb{1}> show proc
PROC (syz-executor) tid=243167 pid=90083 tcnt=0 stat=onproc
flags process=1018<EXITING,SUGID,SINGLEEXIT> proc=2000<WEXIT>
runpri=32, usrpri=78, slppri=32, nice=20
wchan=0x0, wmesg=, ps_single=0xffff800045ffd760 scnt=-1 ecnt=1
forw=0xffffffffffffffff, list=0xffff800045fe9ca8,0xffff80003c3e0568
process=0xffff800045fec9c8 user=0xffff80002a2d9000, vmspace=0xfffffa80669dcd80
estcpu=28, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}> ps
PID TID PPID UID S PRLAGS PFLAGS WAIT COMMAND
40173 43607 58933 32767 2 0x10 0 syz-executor
40173 457240 58933 32767 3 0x10 0x4000080 fsleep syz-executor
61319 52490 74356 32767 2 0x10 0 syz-executor
35640 115252 82584 32767 2 0x10 0 syz-executor
35640 259859 82584 32767 3 0x10 0x4000080 fsleep syz-executor
10162 473297 22633 32767 2 0x10 0 syz-executor
10162 218447 22633 32767 3 0x10 0x4000080 fsleep syz-executor
11436 51555 81493 32767 2 0x10 0 syz-executor
11436 59630 81493 32767 3 0x10 0x4000080 fsleep syz-executor
88591 168869 76811 32767 3 0x10 0 biowait syz-executor
76811 20650 50124 0 3 0x2 0x80 wait syz-executor
81493 79418 19822 32767 3 0x10 0x80 nanoslp syz-executor
19822 194390 50124 0 3 0x2 0x80 wait syz-executor
45247 63389 71333 32767 3 0x10 0x80 nanoslp syz-executor
71333 314788 50124 0 3 0x2 0x80 wait syz-executor
82584 24137 28373 32767 3 0x10 0x80 nanoslp syz-executor
28373 265226 50124 0 3 0x2 0x80 wait syz-executor
22633 186788 20742 32767 3 0x10 0x80 nanoslp syz-executor
20742 439556 50124 0 3 0x2 0x80 wait syz-executor
58933 250339 93129 32767 3 0x10 0x80 nanoslp syz-executor
93129 76394 50124 0 3 0x2 0x80 wait syz-executor
74356 28378 31160 32767 3 0x10 0x80 nanoslp syz-executor
31160 241373 50124 0 3 0x2 0x80 wait syz-executor
50124 106007 79327 0 3 0x2 0x80 wait syz-executor
79327 179977 13614 0 3 0x100002 0x88 sigsusp ksh
13614 199875 73363 0 3 0x10 0x88 kqread sshd-session
73363 7148 56623 0 3 0x12 0x80 kqread sshd-session
14396 329131 1 0 3 0x100003 0x80 ttyin getty
56623 272706 1 0 3 0 0x88 kqread sshd
22291 407151 16306 73 3 0x1100010 0x80 kqread syslogd
16306 417040 1 0 3 0x100002 0x80 sbwait syslogd
19604 267101 1 0 3 0x100000 0x80 kqread resolvd
29642 409400 35870 77 3 0x100012 0x80 kqread dhcpleased
91618 230440 35870 77 3 0x100012 0x80 kqread dhcpleased
35870 64773 1 0 3 0 0x80 kqread dhcpleased
73003 93968 0 0 3 0x14000 0x200 bored smr
9265 26593 0 0 2 0x14000 0x200 zerothread
11263 195804 0 0 3 0x14000 0x200 aiodoned aiodoned
36404 154694 0 0 3 0x14000 0x200 syncer update
32236 110506 0 0 3 0x14000 0x200 cleaner cleaner
5432 507435 0 0 3 0x14000 0x200 reaper reaper
64146 188692 0 0 3 0x14000 0x200 pgdaemon pagedaemon
99680 77073 0 0 3 0x14000 0x200 bored viomb
1551 451566 0 0 3 0x14000 0x40000200 acpi0 acpi0
40356 114425 0 0 3 0x14000 0x40000200 idle1
63873 345406 0 0 3 0x14000 0x200 bored softnet1
67600 364009 0 0 3 0x14000 0x200 bored softnet0
3356 298084 0 0 3 0x14000 0x200 bored systqmp
34631 472297 0 0 3 0x14000 0x200 bored systq
32449 207448 0 0 3 0x14000 0x200 tmoslp softclockmp
14271 381356 0 0 3 0x14000 0x40000200 tmoslp softclock
78566 226468 0 0 3 0x14000 0x40000200 idle0
1 227676 0 0 3 0x2 0x80 wait init
0 0 -1 0 3 0x10000 0x200 scheduler swapper
ddb{1}> show all locks
CPU 0:
exclusive mutex /syzkaller/managers/setuid/kernel/sys/uvm/uvm_device.c:53 r = 0 (0xffffffff839648e0)
#0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline]
#0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160
#1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487
#2 udv_detach+0xa7 sys/uvm/uvm_device.c:264
#3 uvm_unmap_detach+0x15e sys/uvm/uvm_map.c:1370
#4 uvm_map_teardown+0x360 sys/uvm/uvm_map.c:2536
#5 exit1+0x71b sys/kern/kern_exit.c:260
#6 sys_exit+0x1a sys/kern/kern_exit.c:-1
#7 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#7 syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
#8 Xsyscall+0x128
Process 88591 (syz-executor) thread 0xffff80003c3e0a88 (168869)
exclusive rrwlock inode r = 0 (0xfffffa807b230108)
#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 vget+0x2a2 sys/kern/vfs_subr.c:692
#6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98
#7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203
#8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478
#9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85
#10 vfs_lookup+0x9e3 sys/kern/vfs_lookup.c:585
#11 namei+0x7c1 sys/kern/vfs_lookup.c:250
#12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807
#13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
#14 Xsyscall+0x128
exclusive rrwlock inode r = 0 (0xfffffa806d09d488)
#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 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1807
#8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
#8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
#9 Xsyscall+0x128
ddb{1}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 11073 12019K 12034K 166960K 12315 0
pcb 17 14K 16K 166960K 19 0
rtable 215 6K 7K 166960K 1831 0
pf 29 16K 16K 166960K 129 0
ifaddr 38 7K 7K 166960K 244 0
ifgroup 46 2K 2K 166960K 246 0
sysctl 3 1K 9K 166960K 8 0
counters 68 36K 37K 166960K 168 0
ioctlops 0 0K 4K 166960K 92 0
iov 0 0K 12K 166960K 20 0
mount 1 1K 1K 166960K 1 0
log 0 0K 0K 166960K 4 0
vnodes 1287 81K 81K 166960K 2003 0
UFS quota 1 32K 32K 166960K 1 0
UFS mount 5 36K 36K 166960K 5 0
shm 2 1K 5K 166960K 13 0
VM map 2 1K 1K 166960K 2 0
sem 27 1K 1K 166960K 69 0
dirhash 15 2K 2K 166960K 39 0
ACPI 1734 201K 291K 166960K 11964 0
file desc 22 81K 121K 166960K 1443 0
sigio 0 0K 0K 166960K 9 0
proc 58 99K 180K 166960K 1953 0
subproc 63 3K 4K 166960K 648 0
NFS srvsock 1 0K 0K 166960K 1 0
NFS daemon 1 16K 16K 166960K 1 0
ip_moptions 1 0K 0K 166960K 243 0
in_multi 88 5K 6K 166960K 649 0
ether_multi 1 0K 0K 166960K 4 0
mrt 0 0K 0K 166960K 22 0
ISOFS mount 1 32K 32K 166960K 1 0
MSDOSFS mount 1 16K 16K 166960K 1 0
ttys 217 970K 970K 166960K 217 0
exec 0 0K 1K 166960K 1068 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 224 151K 211K 166960K 11778 0
UVM aobj 50 2K 2K 166960K 51 0
pinsyscall 43 86K 110K 166960K 3857 0
memdesc 1 4K 4K 166960K 1 0
crypto data 1 1K 1K 166960K 1 0
ip6_options 0 0K 0K 166960K 23 0
NDP 10 0K 2K 166960K 174 0
temp 39 9124K 9144K 166960K 10710 0
kqueue 13 20K 28K 166960K 121 0
SYN cache 2 16K 16K 166960K 2 0
ddb{1}> 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 120 198 0 195 2 1 1 2 0 8 0
rtentry 176 652 0 553 6 0 6 6 0 8 1
unpcb 144 552 0 537 3 2 1 3 0 8 0
syncache 336 14 0 14 1 0 1 1 0 8 1
tcpqe 32 2 0 2 1 1 0 1 0 8 0
tcpcb 736 524 0 514 7 5 2 7 0 8 0
arp 136 116 0 100 1 0 1 1 0 8 0
ipq 40 4 0 1 1 0 1 1 0 8 0
ipqe 40 6 0 3 1 0 1 1 0 8 0
inpcb 328 1510 0 1495 18 11 7 13 0 8 5
ip6q 80 2 0 1 1 0 1 1 0 8 0
ip6af 40 3 0 2 1 0 1 1 0 8 0
nd6 152 173 0 152 1 0 1 1 0 8 0
kcovpl 48 72 0 65 1 0 1 1 0 8 0
art_heap8 4096 1 0 0 1 0 1 1 0 8 0
art_heap4 256 2625 0 2210 33 2 31 32 0 8 3
art_table 40 2626 0 2210 6 0 6 6 0 8 0
art_node 32 652 0 562 1 0 1 1 0 8 0
sysvmsgpl 40 16 0 14 1 0 1 1 0 8 0
semapl 72 66 0 41 1 0 1 1 0 8 0
shmpl 120 48 0 1 2 0 2 2 0 8 0
dirhash 1024 35 0 16 3 0 3 3 0 8 0
dino2pl 256 2342 0 747 100 0 100 100 0 8 0
ffsino 296 2342 0 747 123 0 123 123 0 8 0
nchpl 144 3172 0 1327 69 0 69 69 0 8 0
vnodes 216 2999 0 0 167 0 167 167 0 8 0
namei 1024 17588 0 17588 3 2 1 2 0 8 1
percpumem 16 100 0 50 1 0 1 1 0 8 0
kstatmem 264 123 0 100 2 0 2 2 0 8 0
scxspl 216 10537 0 10536 8 7 1 6 1 8 0
plimitpl 152 405 0 381 2 0 2 2 0 8 0
sigapl 424 1618 0 1567 7 0 7 7 0 8 1
knotepl 120 476 0 0 15 0 15 15 0 8 0
kqueuepl 224 186 0 177 1 0 1 1 0 8 0
pipepl 344 431 0 404 4 0 4 4 0 8 0
fdescpl 528 1602 0 1568 3 0 3 3 0 8 0
filepl 160 7597 0 7401 17 4 13 15 0 8 1
lockfpl 104 180 0 178 1 0 1 1 0 8 0
lockfspl 48 49 0 47 1 0 1 1 0 8 0
sessionpl 144 121 0 106 1 0 1 1 0 8 0
pgrppl 48 199 0 176 1 0 1 1 0 8 0
ucredpl 104 1352 0 1334 1 0 1 1 0 8 0
zombiepl 144 1569 0 1567 1 0 1 1 0 8 0
processpl 1240 1618 0 1567 5 0 5 5 0 8 0
procpl 664 2458 0 2403 7 1 6 7 0 8 0
sosppl 176 7 0 7 1 0 1 1 0 8 1
sockpl 752 2264 0 2231 25 15 10 18 0 8 5
mcl64k 65536 7 0 0 1 0 1 1 0 8 0
mcl16k 16384 2 0 0 1 0 1 1 0 8 0
mcl9k128 9344 2 0 0 1 0 1 1 0 8 0
mcl8k 8192 6 0 0 1 0 1 1 0 8 0
mcl4k 4096 118 0 0 15 0 15 15 0 8 0
mcl2k 2048 21 0 0 3 0 3 3 0 8 0
mextrefs 64 19 0 0 1 0 1 1 0 8 0
mtagpl 96 3 0 0 1 0 1 1 0 8 0
mbufpl 256 227 0 0 15 0 15 15 0 8 0
bufpl 272 3149 0 102 204 0 204 204 0 8 0
anonpl 32 7693 0 0 63 0 63 63 0 247 0
amapchunkpl 152 39322 0 38831 38 2 36 38 0 158 14
amappl16 200 2895 0 2879 18 12 6 15 0 8 4
amappl15 192 21 0 21 2 2 0 1 0 8 0
amappl14 184 1012 0 1011 1 0 1 1 0 8 0
amappl13 176 291 0 280 1 0 1 1 0 8 0
amappl12 168 2033 0 2000 2 0 2 2 0 8 0
amappl10 152 56 0 46 1 0 1 1 0 8 0
amappl9 144 274 0 274 1 1 0 1 0 8 0
amappl8 136 288 0 286 1 0 1 1 0 8 0
amappl7 128 254 0 243 1 0 1 1 0 8 0
amappl6 120 637 0 636 1 0 1 1 0 8 0
amappl5 112 126 0 118 1 0 1 1 0 8 0
amappl4 104 464 0 447 1 0 1 1 0 8 0
amappl3 96 6167 0 6070 5 2 3 4 0 8 0
amappl2 88 1634 0 1559 2 0 2 2 0 8 0
amappl1 80 21876 0 21308 17 0 17 17 0 8 2
amappl 88 10089 0 9927 5 0 5 5 0 92 0
uvmvnodes 80 113 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 6 0 6 1 1 0 1 0 8 0
dma128 128 253 0 253 1 1 0 1 0 8 0
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 50 0 1 1 0 1 1 0 8 0
uaddrrnd 24 1602 0 1568 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 1602 0 1568 1 0 1 1 0 8 0
vmmpekpl 168 15022 0 14961 4 0 4 4 0 8 1
vmmpepl 168 113811 0 111885 112 8 104 112 0 357 15
vmsppl 488 1601 0 1567 7 1 6 6 0 8 0
rwobjpl 80 34104 0 33130 29 3 26 29 0 8 2
pdppl 4096 3211 0 3134 157 76 81 95 0 8 4
pvpl 32 15758 0 0 128 0 128 128 0 265 0
pmappl 256 1601 0 1567 4 1 3 3 0 8 0
extentpl 40 46 0 28 1 0 1 1 0 8 0
phpool 112 552 0 88 14 0 14 14 0 8 0
ddb{1}> machine ddbcpu 0
Stopped at x86_ipi_db+0x27: addq $0x8,%rsp
x86_ipi_db(ffffffff83959ff0) 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
__mp_lock(ffffffff83a1da40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a1da40) at __mp_lock+0x192 sys/kern/kern_lock.c:173
exit1(ffff800045fe9778,43,0,1) at exit1+0x720 sys/kern/kern_exit.c:260
sys_exit(ffff800045fe9778,ffff80002a358e40,ffff80002a358d90) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a358e40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a358e40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7665e709c040, count: 7
ddb{0}> trace
x86_ipi_db(ffffffff83959ff0) 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
__mp_lock(ffffffff83a1da40) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:142 [inline]
__mp_lock(ffffffff83a1da40) at __mp_lock+0x192 sys/kern/kern_lock.c:173
exit1(ffff800045fe9778,43,0,1) at exit1+0x720 sys/kern/kern_exit.c:260
sys_exit(ffff800045fe9778,ffff80002a358e40,ffff80002a358d90) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a358e40) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a358e40) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7665e709c040, count: -8
ddb{0}> machine ddbcpu 1
Stopped at ip6_freemoptions+0x65: movq 0x8(%r15),%r13
ip6_freemoptions(ffff800000c438d0) at ip6_freemoptions+0x65 sys/netinet6/ip6_output.c:2147
in_pcbdetach(fffffa806fd27e18) at in_pcbdetach+0x122 sys/netinet/in_pcb.c:608
udp_detach(ffff800001626018) at udp_detach+0x5a sys/netinet/udp_usrreq.c:1158
soclose(ffff800001626018,0) at soclose+0xb0 pru_detach sys/sys/protosw.h:281 [inline]
soclose(ffff800001626018,0) at soclose+0xb0 sys/kern/uipc_socket.c:403
soo_close(fffffa806d6e2978,ffff800045ffd760) at soo_close+0x56 sys/kern/sys_socket.c:-1
fdrop(fffffa806d6e2978,ffff800045ffd760) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffa806d6e2978,ffff800045ffd760) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff800045ffd760) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff800045ffd760,0,0,1) at exit1+0x595 sys/kern/kern_exit.c:215
sys_exit(ffff800045ffd760,ffff80002a2ddff0,ffff80002a2ddf40) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2ddff0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2ddff0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ee2d24bb6d0, count: 3
ddb{1}> trace
ip6_freemoptions(ffff800000c438d0) at ip6_freemoptions+0x65 sys/netinet6/ip6_output.c:2147
in_pcbdetach(fffffa806fd27e18) at in_pcbdetach+0x122 sys/netinet/in_pcb.c:608
udp_detach(ffff800001626018) at udp_detach+0x5a sys/netinet/udp_usrreq.c:1158
soclose(ffff800001626018,0) at soclose+0xb0 pru_detach sys/sys/protosw.h:281 [inline]
soclose(ffff800001626018,0) at soclose+0xb0 sys/kern/uipc_socket.c:403
soo_close(fffffa806d6e2978,ffff800045ffd760) at soo_close+0x56 sys/kern/sys_socket.c:-1
fdrop(fffffa806d6e2978,ffff800045ffd760) at fdrop+0x121 sys/kern/kern_descrip.c:1281
closef(fffffa806d6e2978,ffff800045ffd760) at closef+0x192 sys/kern/kern_descrip.c:1265
fdfree(ffff800045ffd760) at fdfree+0x116 sys/kern/kern_descrip.c:1196
exit1(ffff800045ffd760,0,0,1) at exit1+0x595 sys/kern/kern_exit.c:215
sys_exit(ffff800045ffd760,ffff80002a2ddff0,ffff80002a2ddf40) at sys_exit+0x1a sys/kern/kern_exit.c:-1
syscall(ffff80002a2ddff0) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a2ddff0) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:791
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7ee2d24bb6d0, count: -12