uvm_fault(0xfffffd8065e24a28, 0x4, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
igmp_leavegroup(ffff800000d16300,ffff8000006b7000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512
in_delmulti(ffff800000d16300) at in_delmulti+0xd3 sys/netinet/in.c:908
ip_freemoptions(ffff800000de4820) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1762
in_pcbdetach(fffffd806c7eeac0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589
udp_detach(fffffd806954fd60) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113
soclose(fffffd806954fd60,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline]
soclose(fffffd806954fd60,0) at soclose+0x253 sys/kern/uipc_socket.c:397
soo_close(fffffd8071d6ee10,ffff800023165358) at soo_close+0x44
fdrop(fffffd8071d6ee10,ffff800023165358) at fdrop+0xcb sys/kern/kern_descrip.c:1274
closef(fffffd8071d6ee10,ffff800023165358) at closef+0x11b sys/kern/kern_descrip.c:1258
fdfree(ffff800023165358) at fdfree+0xf3 sys/kern/kern_descrip.c:1190
exit1(ffff800023165358,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197
sys_exit(ffff800023165358,ffff800023150090,ffff8000231500e0) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff800023150160) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78dab46067c0, count: 1
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>
ddb> set $lines = 0
ddb> set $maxwidth = 0
ddb> show panic
*cpu0: uvm_fault(0xfffffd8065e24a28, 0x4, 0, 1) -> e
ddb> trace
igmp_leavegroup(ffff800000d16300,ffff8000006b7000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512
in_delmulti(ffff800000d16300) at in_delmulti+0xd3 sys/netinet/in.c:908
ip_freemoptions(ffff800000de4820) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1762
in_pcbdetach(fffffd806c7eeac0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589
udp_detach(fffffd806954fd60) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113
soclose(fffffd806954fd60,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline]
soclose(fffffd806954fd60,0) at soclose+0x253 sys/kern/uipc_socket.c:397
soo_close(fffffd8071d6ee10,ffff800023165358) at soo_close+0x44
fdrop(fffffd8071d6ee10,ffff800023165358) at fdrop+0xcb sys/kern/kern_descrip.c:1274
closef(fffffd8071d6ee10,ffff800023165358) at closef+0x11b sys/kern/kern_descrip.c:1258
fdfree(ffff800023165358) at fdfree+0xf3 sys/kern/kern_descrip.c:1190
exit1(ffff800023165358,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197
sys_exit(ffff800023165358,ffff800023150090,ffff8000231500e0) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff800023150160) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78dab46067c0, count: -14
ddb> show registers
rdi 0
rsi 0
rbp 0xffff80002314fd20
rbx 0x5
rdx 0
rcx 0x1
rax 0
r8 0
r9 0
r10 0x276cbeab3e6afc32
r11 0x3880a88a8b1fbcef
r12 0
r13 0x3
r14 0xffff800000d16300
r15 0xffff8000006b7000
rip 0xffffffff817a626f igmp_leavegroup+0xaf
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff80002314fcf0
ss 0x10
igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d
ddb> show proc
PROC (syz-executor.5) pid=475688 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=32, usrpri=83, nice=20
forw=0xffffffffffffffff, list=0xffff800027f97600,0xffff800023165620
process=0xffff800027f917b0 user=0xffff80002314b000, vmspace=0xfffffd8065e24a28
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=0, intr=0
ddb> ps
PID TID PPID UID S FLAGS WAIT COMMAND
12166 47388 9611 0 2 0 syz-executor.7
12166 485536 9611 0 3 0x4000080 fsleep syz-executor.7
12166 123227 9611 0 3 0x4000080 fsleep syz-executor.7
33398 489613 72847 0 2 0 syz-executor.2
33398 373063 72847 0 3 0x4000080 fsleep syz-executor.2
4432 288278 55407 0 3 0x80 nanoslp syz-executor.3
4432 190916 55407 0 3 0x4000080 fsleep syz-executor.3
45963 32449 0 0 3 0x14280 nfsidl nfsio
31034 384817 0 0 3 0x14280 nfsidl nfsio
84148 454330 0 0 3 0x14280 nfsidl nfsio
88965 187446 0 0 3 0x14280 nfsidl nfsio
66918 391183 0 0 3 0x14280 nfsidl nfsio
1434 307349 0 0 3 0x14280 nfsidl nfsio
98380 217018 0 0 3 0x14280 nfsidl nfsio
3302 409838 0 0 3 0x14280 nfsidl nfsio
3526 383006 0 0 3 0x14280 nfsidl nfsio
9553 247253 0 0 3 0x14280 nfsidl nfsio
2466 508490 0 0 3 0x14280 nfsidl nfsio
2171 275208 0 0 3 0x14280 nfsidl nfsio
81539 290407 0 0 3 0x14280 nfsidl nfsio
77056 382702 0 0 3 0x14280 nfsidl nfsio
45226 209549 0 0 3 0x14280 nfsidl nfsio
77897 192896 0 0 3 0x14280 nfsidl nfsio
98245 117079 0 0 3 0x14280 nfsidl nfsio
67775 107559 0 0 3 0x14280 nfsidl nfsio
50406 41190 0 0 3 0x14280 nfsidl nfsio
92175 480184 0 0 3 0x14280 nfsidl nfsio
86534 68575 72869 0 3 0x82 nanoslp syz-executor.0
55407 24304 72869 0 3 0x82 nanoslp syz-executor.3
72847 208725 72869 0 3 0x82 nanoslp syz-executor.2
17517 199431 72869 0 3 0x82 nanoslp syz-executor.5
74036 122288 72869 0 3 0x82 nanoslp syz-executor.6
9611 141473 72869 0 3 0x82 nanoslp syz-executor.7
90442 514253 72869 0 2 0x2 syz-executor.4
65068 361109 72869 0 3 0x82 nanoslp syz-executor.1
23726 422454 0 0 3 0x14200 bored sosplice
72869 28359 87366 0 3 0x82 wait syz-fuzzer
72869 13394 87366 0 3 0x4000082 nanoslp syz-fuzzer
72869 313012 87366 0 3 0x4000082 wait syz-fuzzer
72869 134483 87366 0 3 0x4000082 thrsleep syz-fuzzer
72869 325730 87366 0 3 0x4000082 wait syz-fuzzer
72869 367663 87366 0 3 0x4000082 kqread syz-fuzzer
72869 302579 87366 0 3 0x4000082 wait syz-fuzzer
72869 506102 87366 0 3 0x4000082 thrsleep syz-fuzzer
72869 31914 87366 0 3 0x4000082 wait syz-fuzzer
72869 515825 87366 0 3 0x4000082 thrsleep syz-fuzzer
72869 401382 87366 0 3 0x4000082 thrsleep syz-fuzzer
72869 460186 87366 0 3 0x4000082 wait syz-fuzzer
72869 418943 87366 0 3 0x4000082 wait syz-fuzzer
72869 430688 87366 0 3 0x4000082 wait syz-fuzzer
87366 269612 86114 0 3 0x10008a sigsusp ksh
86114 163794 54218 0 3 0x9a kqread sshd
4217 76030 1 0 3 0x100083 ttyin getty
54218 374248 1 0 3 0x88 kqread sshd
17612 236049 91402 73 3 0x1100090 kqread syslogd
91402 64561 1 0 3 0x100082 netio syslogd
12141 74140 1 0 3 0x100080 kqread resolvd
31540 258616 82530 77 3 0x100092 kqread dhcpleased
35469 46354 82530 77 3 0x100092 kqread dhcpleased
82530 511904 1 0 3 0x80 kqread dhcpleased
89204 390237 0 0 3 0x14200 bored smr
1967 162882 0 0 2 0x14200 zerothread
58881 251177 0 0 3 0x14200 aiodoned aiodoned
4152 325315 0 0 3 0x14200 syncer update
81141 366311 0 0 3 0x14200 cleaner cleaner
86101 69536 0 0 3 0x14200 reaper reaper
55584 467004 0 0 3 0x14200 pgdaemon pagedaemon
31059 42192 0 0 3 0x14200 bored viomb
24693 302436 0 0 3 0x40014200 acpi0 acpi0
81629 426823 0 0 3 0x14200 bored softnet3
2237 416754 0 0 3 0x14200 bored softnet2
85343 260540 0 0 3 0x14200 bored softnet1
98354 416772 0 0 3 0x14200 bored softnet0
87953 217344 0 0 3 0x14200 bored systqmp
4349 251699 0 0 3 0x14200 bored systq
80434 330443 0 0 3 0x40014200 bored softclock
28438 386666 0 0 3 0x40014200 idle0
1 358609 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb> show all locks
No such command
ddb> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10195 6436K 7476K 78643K 26300 0
pcb 17 18K 20K 78643K 8950 0
rtable 182 15K 16K 78643K 3220 0
pf 49 13K 1034K 78643K 18067 0
ifaddr 39 11K 12K 78643K 491 0
ifgroup 60 2K 3K 78643K 787 0
sysctl 2 0K 0K 78643K 2 0
counters 28 17K 17K 78643K 565 0
ioctlops 0 0K 2K 78643K 1552 0
iov 0 0K 24K 78643K 1676 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 4 0
vnodes 1594 100K 100K 78643K 12718 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 2 1K 9K 78643K 117 0
VM map 2 1K 1K 78643K 2 0
sem 20 11K 20K 78643K 2300 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 14 49K 73K 78643K 11974 0
sigio 0 0K 0K 78643K 629 0
proc 59 59K 91K 78643K 2247 0
subproc 104 6K 6K 78643K 728 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 2 0K 0K 78643K 451 0
in_multi 71 5K 7K 78643K 1012 0
ether_multi 1 0K 0K 78643K 61 0
mrt 1 0K 0K 78643K 90 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 157 705K 705K 78643K 157 0
exec 0 0K 1K 78643K 3015 0
pfkey data 0 0K 0K 78643K 57 0
tdb 3 0K 0K 78643K 3 0
pagedep 1 8K 8K 78643K 1 0
inodedep 1 32K 32K 78643K 1 0
newblk 1 0K 0K 78643K 1 0
VM swap 8 62K 64K 78643K 10 0
UVM amap 382 93K 107K 78643K 111192 0
UVM aobj 131 4K 4K 78643K 137 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 0 0K 0K 78643K 336 0
NDP 14 0K 2K 78643K 339 0
temp 74 5856K 5940K 78643K 149287 0
kqueue 12 18K 28K 78643K 1678 0
SYN cache 2 16K 16K 78643K 2 0
ddb> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
rtpcb 120 1010 0 1007 11 8 3 3 0 8 2
rtentry 112 1016 0 942 4 1 3 4 0 8 0
unpcb 144 9097 0 9084 89 81 8 11 0 8 7
syncache 296 47 0 47 14 13 1 1 0 8 1
tcpqe 32 512 61 512 4 4 0 1 0 8 0
tcpcb 808 2995 0 2984 103 98 5 14 0 8 3
arp 88 135 0 121 1 0 1 1 0 8 0
ipq 40 72 0 71 5 4 1 1 0 8 0
ipqe 40 152 0 151 5 4 1 1 0 8 0
inpcb 336 16866 0 16847 193 186 7 18 0 8 4
nd6 104 190 0 174 1 0 1 1 0 8 0
pkpcb 40 61 0 61 7 7 0 1 0 8 0
kcovpl 48 56 0 48 1 0 1 1 0 8 0
mppekey 1024 12 0 12 5 4 1 1 0 8 1
ppxss 1160 406 0 405 20 19 1 1 0 8 0
pppxif 1360 278 0 278 11 10 1 1 0 8 1
pfstscr 40 40 0 32 1 0 1 1 0 8 0
pfosfp 40 14 0 11 1 0 1 1 0 8 0
pfosfpen 112 14 0 5 1 0 1 1 0 8 0
pfanchor 1288 898 16 386 46 3 43 43 0 8 0
pftag 88 1 0 0 1 0 1 1 0 8 0
pfqueue 264 9 0 9 2 2 0 1 0 8 0
pfstitem 24 35 0 13 1 0 1 1 0 8 0
pfstkey 128 220 0 204 1 0 1 1 0 8 0
pfstate 344 110 0 99 1 0 1 1 0 8 0
rttmr 136 27 0 27 6 6 0 1 0 8 0
art_heap8 4096 5 0 4 3 2 1 3 0 8 0
art_heap4 256 4368 0 4048 55 33 22 30 0 8 0
art_table 32 4373 0 4052 4 0 4 4 0 8 0
art_node 16 894 0 831 1 0 1 1 0 8 0
sysvmsgpl 40 2 0 0 1 0 1 1 0 8 0
semupl 112 1 0 1 1 1 0 1 0 8 0
semapl 112 2294 0 2276 1 0 1 1 0 8 0
shmpl 112 134 0 6 4 0 4 4 0 8 0
dirhash 1024 17 0 0 3 0 3 3 0 8 0
dino2pl 256 16005 0 14505 95 0 95 95 0 8 0
ffsino 240 16005 0 14505 89 0 89 89 0 8 0
nchpl 144 32088 0 31592 63 42 21 63 0 8 0
uvmvnodes 80 6184 0 0 127 0 127 127 0 8 0
vnodes 216 6184 0 0 344 0 344 344 0 8 0
namei 1024 136708 0 136708 7 6 1 3 0 8 1
kstatmem 264 420 0 392 5 2 3 3 0 8 0
scsiplug 72 9 0 9 3 3 0 1 0 8 0
scxspl 216 102439 0 102439 25 24 1 8 0 8 1
plimitpl 152 1369 0 1354 1 0 1 1 0 8 0
sigapl 424 12257 0 12192 11 3 8 8 0 8 0
futexpl 64 133738 0 133734 4 3 1 1 0 8 0
knotepl 120 738548 0 738468 233 223 10 35 0 8 3
kqueuepl 184 3054 0 3044 31 27 4 6 0 8 3
pipepl 288 2898 0 2868 54 49 5 7 0 8 2
fdescpl 432 12159 0 12134 9 5 4 4 0 8 0
filepl 120 99154 0 98904 129 115 14 19 0 8 4
lockfpl 104 3214 0 3212 7 6 1 2 0 8 0
lockfspl 48 852 0 850 1 0 1 1 0 8 0
sessionpl 144 71 0 55 1 0 1 1 0 8 0
pgrppl 48 222 0 206 1 0 1 1 0 8 0
ucredpl 104 14963 0 14948 1 0 1 1 0 8 0
zombiepl 144 12196 0 12192 1 0 1 1 0 8 0
processpl 1008 12257 0 12192 12 3 9 9 0 8 0
procpl 696 29882 0 29800 16 7 9 10 0 8 0
sosppl 168 85 0 83 18 17 1 1 0 8 0
sockpl 456 27181 0 27146 532 518 14 36 0 8 8
mcl64k 65536 518 0 518 20 19 1 1 0 8 1
mcl16k 16384 251 0 251 26 25 1 1 0 8 1
mcl12k 12288 474 0 474 29 28 1 1 0 8 1
mcl9k 9216 147 0 147 26 25 1 1 0 8 1
mcl8k 8192 631 0 631 18 17 1 1 0 8 1
mcl4k 4096 1504 0 1504 15 14 1 1 0 8 1
mcl2k2 2112 85 0 85 29 28 1 1 0 8 1
mcl2k 2048 97491 0 97436 73 64 9 42 0 8 1
mtagpl 96 1551 0 1285 15 6 9 11 0 8 0
mbufpl 256 305221 0 304853 641 607 34 85 0 8 0
bufpl 288 24857 0 18472 457 0 457 457 0 8 0
anonpl 24 1388970 0 1373026 296 174 122 173 0 188 4
amapchunkpl 152 363864 0 362991 188 142 46 69 0 158 7
amappl16 200 27092 0 26599 139 103 36 39 0 8 8
amappl15 192 13 0 12 1 0 1 1 0 8 0
amappl14 184 290 0 276 2 1 1 2 0 8 0
amappl13 176 21 0 20 1 0 1 1 0 8 0
amappl12 168 13510 0 13484 3 1 2 2 0 8 0
amappl11 160 50 0 40 1 0 1 1 0 8 0
amappl10 152 75 0 65 2 1 1 1 0 8 0
amappl9 144 177 0 175 2 1 1 2 0 8 0
amappl8 136 558 0 445 5 1 4 4 0 8 0
amappl7 128 109 0 91 1 0 1 1 0 8 0
amappl6 120 669 0 645 2 1 1 2 0 8 0
amappl5 112 536 0 530 1 0 1 1 0 8 0
amappl4 104 1392 0 1354 5 3 2 2 0 8 0
amappl3 96 69698 0 69625 4 1 3 3 0 8 0
amappl2 88 12669 0 12607 4 2 2 3 0 8 0
amappl1 80 55338 0 54845 22 11 11 22 0 8 0
amappl 88 109940 0 109710 10 3 7 7 0 92 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 72 136 0 6 3 0 3 3 0 8 0
uaddrrnd 24 12159 0 12134 1 0 1 1 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 12159 0 12134 1 0 1 1 0 8 0
vmmpekpl 168 91672 0 91616 4 1 3 3 0 8 0
vmmpepl 168 741325 0 739069 319 196 123 134 0 357 0
vmsppl 368 12158 0 12134 4 1 3 3 0 8 0
rwobjpl 24 178088 0 170237 50 1 49 49 0 8 0
pdppl 4096 24324 0 24268 664 600 64 68 0 8 8
pvpl 32 3682407 0 3660943 655 443 212 359 0 265 14
pmappl 216 12158 0 12134 3 1 2 2 0 8 0
extentpl 40 56 0 38 1 0 1 1 0 8 0
phpool 112 2539 0 1737 25 0 25 25 0 8 0
ddb> machine ddbcpu 0
No such command
ddb> trace
igmp_leavegroup(ffff800000d16300,ffff8000006b7000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512
in_delmulti(ffff800000d16300) at in_delmulti+0xd3 sys/netinet/in.c:908
ip_freemoptions(ffff800000de4820) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1762
in_pcbdetach(fffffd806c7eeac0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589
udp_detach(fffffd806954fd60) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113
soclose(fffffd806954fd60,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline]
soclose(fffffd806954fd60,0) at soclose+0x253 sys/kern/uipc_socket.c:397
soo_close(fffffd8071d6ee10,ffff800023165358) at soo_close+0x44
fdrop(fffffd8071d6ee10,ffff800023165358) at fdrop+0xcb sys/kern/kern_descrip.c:1274
closef(fffffd8071d6ee10,ffff800023165358) at closef+0x11b sys/kern/kern_descrip.c:1258
fdfree(ffff800023165358) at fdfree+0xf3 sys/kern/kern_descrip.c:1190
exit1(ffff800023165358,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197
sys_exit(ffff800023165358,ffff800023150090,ffff8000231500e0) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff800023150160) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78dab46067c0, count: -14
ddb> machine ddbcpu 1
No such command
ddb> trace
igmp_leavegroup(ffff800000d16300,ffff8000006b7000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512
in_delmulti(ffff800000d16300) at in_delmulti+0xd3 sys/netinet/in.c:908
ip_freemoptions(ffff800000de4820) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1762
in_pcbdetach(fffffd806c7eeac0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:589
udp_detach(fffffd806954fd60) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113
soclose(fffffd806954fd60,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline]
soclose(fffffd806954fd60,0) at soclose+0x253 sys/kern/uipc_socket.c:397
soo_close(fffffd8071d6ee10,ffff800023165358) at soo_close+0x44
fdrop(fffffd8071d6ee10,ffff800023165358) at fdrop+0xcb sys/kern/kern_descrip.c:1274
closef(fffffd8071d6ee10,ffff800023165358) at closef+0x11b sys/kern/kern_descrip.c:1258
fdfree(ffff800023165358) at fdfree+0xf3 sys/kern/kern_descrip.c:1190
exit1(ffff800023165358,0,0,1) at exit1+0x35d sys/kern/kern_exit.c:197
sys_exit(ffff800023165358,ffff800023150090,ffff8000231500e0) at sys_exit+0x1a sys/kern/kern_exit.c:89
syscall(ffff800023150160) at syscall+0x4a8 sys/arch/amd64/amd64/trap.c:623
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x78dab46067c0, count: -14