uvm_fault(0xfffffd805adf2458, 0x4, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at igmp_leavegroup+0x80: movl 0x4(%rax),%r12d
TID PID UID PRFLAGS PFLAGS CPU COMMAND
igmp_leavegroup(ffff800000bdbec0) at igmp_leavegroup+0x80 sys/netinet/igmp.c:521
in_delmulti(ffff800000bdbec0) at in_delmulti+0xb7 sys/netinet/in.c:917
ip_freemoptions(ffff8000006c6ae0) at ip_freemoptions+0x4d sys/netinet/ip_output.c:1764
in_pcbdetach(fffffd8074aecb08) at in_pcbdetach+0xfc sys/netinet/in_pcb.c:585
udp_detach(fffffd807cc7a060) at udp_detach+0x3b sys/netinet/udp_usrreq.c:1258
soclose(fffffd807cc7a060,0) at soclose+0x255 sys/kern/uipc_socket.c:351
soo_close(fffffd8066de5d10,ffff8000ffff5500) at soo_close+0x40
fdrop(fffffd8066de5d10,ffff8000ffff5500) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd8066de5d10,ffff8000ffff5500) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000ffff5500) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000ffff5500,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:202
sys_exit(ffff8000ffff5500,ffff8000212228c0,ffff800021222920) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff800021222990) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021222990) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffb7c0, 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{0}>
ddb{0}> set $lines = 0
ddb{0}> set $maxwidth = 0
ddb{0}> show panic
*cpu0: uvm_fault(0xfffffd805adf2458, 0x4, 0, 1) -> e
ddb{0}> trace
igmp_leavegroup(ffff800000bdbec0) at igmp_leavegroup+0x80 sys/netinet/igmp.c:521
in_delmulti(ffff800000bdbec0) at in_delmulti+0xb7 sys/netinet/in.c:917
ip_freemoptions(ffff8000006c6ae0) at ip_freemoptions+0x4d sys/netinet/ip_output.c:1764
in_pcbdetach(fffffd8074aecb08) at in_pcbdetach+0xfc sys/netinet/in_pcb.c:585
udp_detach(fffffd807cc7a060) at udp_detach+0x3b sys/netinet/udp_usrreq.c:1258
soclose(fffffd807cc7a060,0) at soclose+0x255 sys/kern/uipc_socket.c:351
soo_close(fffffd8066de5d10,ffff8000ffff5500) at soo_close+0x40
fdrop(fffffd8066de5d10,ffff8000ffff5500) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd8066de5d10,ffff8000ffff5500) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000ffff5500) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000ffff5500,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:202
sys_exit(ffff8000ffff5500,ffff8000212228c0,ffff800021222920) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff800021222990) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021222990) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffb7c0, count: -14
ddb{0}> show registers
rdi 0
rsi 0
rbp 0xffff800021222540
rbx 0
rdx 0
rcx 0x1
rax 0
r8 0
r9 0
r10 0xe18f5aeda493d39e
r11 0xdca0d6110e791182
r12 0
r13 0x3
r14 0xffff800000689000
r15 0xffff800000bdbec0
rip 0xffffffff81567760 igmp_leavegroup+0x80
cs 0x8
rflags 0x10246 __ALIGN_SIZE+0xf246
rsp 0xffff800021222510
ss 0x10
igmp_leavegroup+0x80: movl 0x4(%rax),%r12d
ddb{0}> show proc
PROC (syz-executor.1) pid=513658 stat=onproc
flags process=1008<EXITING,SINGLEEXIT> proc=2000<WEXIT>
pri=32, usrpri=83, nice=20
forw=0xffffffffffffffff, list=0xffff8000ffff5260,0xffff800024660d40
process=0xffff8000211a0860 user=0xffff80002121d000, vmspace=0xfffffd805adf2458
estcpu=36, cpticks=1, pctcpu=0.0
user=0, sys=0, intr=0
ddb{0}> ps
PID TID PPID UID S FLAGS WAIT COMMAND
32756 284421 76669 0 2 0 syz-executor.6
32756 470012 76669 0 3 0x4000080 fsleep syz-executor.6
40286 46773 35272 0 2 0 syz-executor.0
40286 374809 35272 0 3 0x4000080 fsleep syz-executor.0
15467 508635 89963 0 2 0x4081000 syz-executor.2
15467 246802 89963 0 3 0x4003000 suspend syz-executor.2
24447 343335 92552 0 2 0 syz-executor.7
24447 457413 92552 0 3 0x4000080 fsleep syz-executor.7
6464 319096 20350 0 2 0 syz-executor.5
6464 470739 20350 0 3 0x4000080 fsleep syz-executor.5
9803 208534 58737 0 2 0 syz-executor.4
9803 112263 58737 0 3 0x4000080 fsleep syz-executor.4
35272 386035 50623 0 3 0x82 nanoslp syz-executor.0
20350 94423 50623 0 3 0x82 nanoslp syz-executor.5
46183 316935 50623 0 3 0x82 nanoslp syz-executor.1
76669 154050 50623 0 3 0x82 nanoslp syz-executor.6
89963 289782 50623 0 3 0x82 nanoslp syz-executor.2
61306 506649 1 0 3 0x100083 ttyin getty
69281 500535 50623 0 2 0x2 syz-executor.3
58737 260863 50623 0 3 0x82 nanoslp syz-executor.4
96083 340150 0 0 3 0x14280 nfsidl nfsio
80877 227366 0 0 3 0x14280 nfsidl nfsio
1948 289624 0 0 3 0x14280 nfsidl nfsio
30083 276007 0 0 3 0x14280 nfsidl nfsio
81557 97947 0 0 3 0x14280 nfsidl nfsio
2733 218363 0 0 3 0x14280 nfsidl nfsio
68168 468076 0 0 3 0x14280 nfsidl nfsio
79039 77981 0 0 3 0x14280 nfsidl nfsio
38190 496800 0 0 3 0x14280 nfsidl nfsio
11739 17057 0 0 3 0x14280 nfsidl nfsio
70909 460360 0 0 3 0x14280 nfsidl nfsio
59746 182143 0 0 3 0x14280 nfsidl nfsio
80291 75460 0 0 3 0x14280 nfsidl nfsio
31112 301 0 0 3 0x14280 nfsidl nfsio
39735 301252 0 0 3 0x14280 nfsidl nfsio
12541 361861 0 0 3 0x14280 nfsidl nfsio
82217 428292 0 0 3 0x14280 nfsidl nfsio
69688 456856 0 0 3 0x14280 nfsidl nfsio
63823 97450 0 0 3 0x14280 nfsidl nfsio
6392 53039 0 0 3 0x14280 nfsidl nfsio
92552 287481 50623 0 3 0x82 nanoslp syz-executor.7
89173 155262 0 0 3 0x14200 acct acct
94459 212054 0 0 3 0x14200 bored sosplice
50623 326467 51477 0 3 0x82 thrsleep syz-fuzzer
50623 99189 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 178083 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 429721 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 5625 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 175466 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 78079 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 522807 51477 0 3 0x4000082 thrsleep syz-fuzzer
50623 222133 51477 0 3 0x4000082 kqread syz-fuzzer
51477 400260 74063 0 3 0x10008a sigsusp ksh
74063 210752 38430 0 3 0x9a kqread sshd
38430 373818 1 0 3 0x88 kqread sshd
40450 76583 42439 74 3 0x1100092 bpf pflogd
42439 162423 1 0 3 0x80 netio pflogd
20681 228505 80506 73 3 0x1100090 kqread syslogd
80506 89585 1 0 3 0x100082 netio syslogd
2204 504457 1 0 3 0x100080 kqread resolvd
11130 237362 25577 77 3 0x100092 kqread dhcpleased
96667 501628 25577 77 3 0x100092 kqread dhcpleased
25577 360528 1 0 3 0x80 kqread dhcpleased
53127 468032 0 0 3 0x14200 bored smr
3469 394708 0 0 2 0x14200 zerothread
64363 102308 0 0 3 0x14200 aiodoned aiodoned
89990 96670 0 0 3 0x14200 syncer update
40368 61604 0 0 3 0x14200 cleaner cleaner
45077 247801 0 0 3 0x14200 reaper reaper
7543 508002 0 0 3 0x14200 pgdaemon pagedaemon
27155 164621 0 0 3 0x14200 bored viomb
50799 493881 0 0 3 0x40014200 acpi0 acpi0
91188 370628 0 0 7 0x40014200 idle1
87930 81712 0 0 3 0x14200 bored softnet
60046 191810 0 0 3 0x14200 bored systqmp
8897 365950 0 0 3 0x14200 bored systq
29466 113251 0 0 3 0x40014200 bored softclock
16958 321835 0 0 3 0x40014200 idle0
1 381437 0 0 3 0x82 wait init
0 0 -1 0 3 0x10200 scheduler swapper
ddb{0}> show all locks
ddb{0}> show malloc
Type InUse MemUse HighUse Limit Requests Type Lim
devbuf 10230 6582K 7376K 78643K 40203 0
pcb 13 18K 20K 78643K 2240 0
rtable 234 17K 18K 78643K 3143 0
ifaddr 102 23K 24K 78643K 826 0
sysctl 3 1K 1K 78643K 3 0
counters 58 35K 36K 78643K 298 0
ioctlops 0 0K 8K 78643K 7845 0
iov 0 0K 34K 78643K 2362 0
mount 1 1K 1K 78643K 1 0
log 0 0K 0K 78643K 5 0
vnodes 1552 97K 98K 78643K 10146 0
UFS quota 1 32K 32K 78643K 1 0
UFS mount 5 36K 36K 78643K 5 0
shm 4 9K 9K 78643K 137 0
VM map 2 1K 1K 78643K 2 0
sem 12 0K 1K 78643K 621 0
dirhash 12 2K 2K 78643K 12 0
ACPI 1697 195K 286K 78643K 12548 0
file desc 17 61K 81K 78643K 16589 0
sigio 0 0K 0K 78643K 328 0
proc 70 87K 112K 78643K 2696 0
subproc 104 6K 6K 78643K 803 0
NFS srvsock 1 0K 0K 78643K 1 0
NFS daemon 1 16K 16K 78643K 1 0
ip_moptions 2 0K 0K 78643K 1049 0
in_multi 103 6K 7K 78643K 1048 0
ether_multi 1 0K 0K 78643K 114 0
mrt 2 0K 0K 78643K 66 0
ISOFS mount 1 32K 32K 78643K 1 0
MSDOSFS mount 1 16K 16K 78643K 1 0
ttys 253 1129K 1129K 78643K 253 0
exec 0 0K 2K 78643K 3798 0
pfkey data 0 0K 0K 78643K 38 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 7 26K 26K 78643K 7 0
UVM amap 681 1349K 1352K 78643K 207345 0
UVM aobj 131 8K 8K 78643K 137 0
memdesc 1 4K 4K 78643K 1 0
crypto data 1 1K 1K 78643K 1 0
ip6_options 3 0K 1K 78643K 5189 0
NDP 15 0K 1K 78643K 269 0
temp 143 4713K 4958K 78643K 185485 0
kqueue 12 18K 25K 78643K 1169 0
SYN cache 2 16K 16K 78643K 2 0
ddb{0}> show all pools
Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle
plcache 128 22 0 0 1 0 1 1 0 8 0
rtpcb 120 1454 0 1451 23 22 1 5 0 8 0
rtentry 112 1077 0 978 5 1 4 4 0 8 0
unpcb 136 13265 0 13248 149 143 6 9 0 8 5
syncache 296 102 0 102 30 29 1 1 0 8 1
tcpqe 32 44 0 44 17 16 1 1 0 8 1
tcpcb 736 15844 0 15819 394 382 12 20 0 8 8
arp 120 194 0 178 1 0 1 1 0 8 0
inpcb 312 25782 0 25758 336 326 10 17 0 8 7
rttmr 72 12 0 12 5 5 0 1 0 8 0
nd6 48 203 0 179 1 0 1 1 0 8 0
pkpcb 40 54 0 54 11 11 0 1 0 8 0
kcovpl 48 58 0 50 1 0 1 1 0 8 0
ppxss 1248 19 0 19 6 6 0 1 0 8 0
pffrag 232 120 0 118 11 10 1 1 0 482 0
pffrnode 88 117 0 115 11 10 1 1 0 8 0
pffrent 40 572 0 570 11 10 1 1 0 8 0
pfosfp 40 1428 0 1005 5 0 5 5 0 8 0
pfosfpen 112 1428 0 714 21 0 21 21 0 8 0
pfrktable 1344 4 0 1 1 0 1 1 0 8 0
pftag 88 2 0 0 1 0 1 1 0 8 0
pfqueue 264 3 0 3 1 1 0 1 0 8 0
pfstitem 24 33 0 31 1 0 1 1 0 8 0
pfstkey 112 33 0 31 1 0 1 1 0 8 0
pfstate 320 33 0 31 2 1 1 2 0 8 0
pfrule 1360 139 0 129 2 1 1 2 0 8 0
art_heap8 4096 3 0 2 3 2 1 2 0 8 0
art_heap4 256 3971 0 3537 45 16 29 31 0 8 0
art_table 32 3974 0 3539 4 0 4 4 0 8 0
art_node 16 1032 0 947 1 0 1 1 0 8 0
sysvmsgpl 40 40 0 17 1 0 1 1 0 8 0
semupl 112 5 0 5 2 2 0 1 0 8 0
semapl 112 615 0 605 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 23056 0 21562 94 0 94 94 0 8 0
ffsino 272 23056 0 21562 100 0 100 100 0 8 0
nchpl 144 44724 0 43097 63 0 63 63 0 8 0
uvmvnodes 80 7841 0 0 161 0 161 161 0 8 0
vnodes 224 7841 0 0 462 0 462 462 0 8 0
namei 1024 159458 0 159458 10 9 1 2 0 8 1
percpumem 16 161 0 120 1 0 1 1 0 8 0
vcpupl 2048 282 0 2 35 0 35 35 0 8 0
vmpool 560 396 0 116 24 4 20 21 0 8 0
pfiaddrpl 120 3 0 0 1 0 1 1 0 8 0
scsiplug 72 5 0 5 1 1 0 1 0 8 0
scxspl 216 153021 0 153021 22 21 1 8 0 8 1
plimitpl 152 1160 0 1145 1 0 1 1 0 8 0
sigapl 424 16837 0 16770 9 1 8 8 0 8 0
futexpl 64 156068 0 156063 7 6 1 1 0 8 0
knotepl 120 1544 0 0 17 0 17 17 0 8 0
kqueuepl 216 3788 0 3780 89 86 3 7 0 8 2
pipepl 336 3738 0 3710 111 108 3 11 0 8 0
fdescpl 496 16781 0 16751 7 3 4 5 0 8 0
filepl 152 121388 0 121130 267 252 15 20 0 8 5
lockfpl 104 5122 0 5119 11 9 2 2 0 8 1
lockfspl 48 1390 0 1387 1 0 1 1 0 8 0
sessionpl 144 83 0 66 1 0 1 1 0 8 0
pgrppl 48 265 0 248 1 0 1 1 0 8 0
ucredpl 96 14142 0 14121 1 0 1 1 0 8 0
zombiepl 144 16773 0 16770 3 2 1 1 0 8 0
processpl 1064 16837 0 16770 5 0 5 5 0 8 0
procpl 672 44710 0 44628 23 14 9 9 0 8 1
srpgc 96 52 0 52 14 14 0 1 0 8 0
sosppl 168 191 0 191 25 24 1 1 0 8 1
sockpl 480 40680 0 40636 842 828 14 35 0 8 8
mcl64k 65536 37 0 0 5 2 3 3 0 8 0
mcl16k 16384 14 0 0 2 0 2 2 0 8 0
mcl12k 12288 33 0 0 2 0 2 2 0 8 0
mcl9k 9216 24 0 0 2 0 2 2 0 8 0
mcl8k 8192 32 0 0 4 1 3 3 0 8 0
mcl4k 4096 24 0 0 3 0 3 3 0 8 0
mcl2k2 2112 8 0 0 1 0 1 1 0 8 0
mcl2k 2048 293 0 0 18 1 17 18 0 8 0
mtagpl 96 1773 0 0 27 0 27 27 0 8 0
mbufpl 256 9266 0 0 544 0 544 544 0 8 0
bufpl 288 30584 0 22742 561 0 561 561 0 8 0
anonpl 24 4873716 0 4850395 383 227 156 186 0 186 0
amapchunkpl 152 508275 0 507077 194 137 57 59 0 158 9
amappl16 200 51429 0 50754 283 245 38 58 0 8 0
amappl15 192 2268 0 2258 1 0 1 1 0 8 0
amappl14 184 1498 0 1490 1 0 1 1 0 8 0
amappl13 176 2428 0 2423 1 0 1 1 0 8 0
amappl12 168 2621 0 2618 2 1 1 1 0 8 0
amappl11 160 1868 0 1854 1 0 1 1 0 8 0
amappl10 152 1591 0 1586 1 0 1 1 0 8 0
amappl9 144 3443 0 3439 1 0 1 1 0 8 0
amappl8 136 3991 0 3846 7 1 6 6 0 8 0
amappl7 128 2420 0 2403 1 0 1 1 0 8 0
amappl6 120 3318 0 3291 2 1 1 2 0 8 0
amappl5 112 14550 0 14530 1 0 1 1 0 8 0
amappl4 104 6439 0 6403 4 2 2 2 0 8 0
amappl3 96 3997 0 3982 1 0 1 1 0 8 0
amappl2 88 5068 0 5011 3 1 2 3 0 8 0
amappl1 80 299577 0 298967 25 11 14 19 0 8 0
amappl 88 205516 0 205124 12 2 10 10 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 17177 0 16867 2 0 2 2 0 8 0
uaddrbest 32 2 0 0 1 0 1 1 0 8 0
uaddr 24 17177 0 16867 2 0 2 2 0 8 0
vmmpekpl 168 124548 0 124461 5 0 5 5 0 8 0
vmmpepl 168 1538201 0 1534898 445 288 157 167 0 357 5
vmsppl 368 17176 0 16867 30 1 29 29 0 8 0
rwobjpl 56 372035 0 362165 160 18 142 143 0 8 0
pdppl 4096 34361 0 34014 1301 952 349 351 0 8 2
pvpl 32 8236047 0 8211425 740 515 225 300 0 265 0
pmappl 248 17176 0 16867 20 0 20 20 0 8 0
extentpl 40 58 0 38 1 0 1 1 0 8 0
phpool 112 3604 0 1803 52 0 52 52 0 8 0
ddb{0}> machine ddbcpu 0
Invalid cpu 0
ddb{0}> trace
igmp_leavegroup(ffff800000bdbec0) at igmp_leavegroup+0x80 sys/netinet/igmp.c:521
in_delmulti(ffff800000bdbec0) at in_delmulti+0xb7 sys/netinet/in.c:917
ip_freemoptions(ffff8000006c6ae0) at ip_freemoptions+0x4d sys/netinet/ip_output.c:1764
in_pcbdetach(fffffd8074aecb08) at in_pcbdetach+0xfc sys/netinet/in_pcb.c:585
udp_detach(fffffd807cc7a060) at udp_detach+0x3b sys/netinet/udp_usrreq.c:1258
soclose(fffffd807cc7a060,0) at soclose+0x255 sys/kern/uipc_socket.c:351
soo_close(fffffd8066de5d10,ffff8000ffff5500) at soo_close+0x40
fdrop(fffffd8066de5d10,ffff8000ffff5500) at fdrop+0xc7 sys/kern/kern_descrip.c:1279
closef(fffffd8066de5d10,ffff8000ffff5500) at closef+0x11c sys/kern/kern_descrip.c:1263
fdfree(ffff8000ffff5500) at fdfree+0xf4 sys/kern/kern_descrip.c:1195
exit1(ffff8000ffff5500,0,0,1) at exit1+0x37d sys/kern/kern_exit.c:202
sys_exit(ffff8000ffff5500,ffff8000212228c0,ffff800021222920) at sys_exit+0x16 sys/kern/kern_exit.c:95
syscall(ffff800021222990) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline]
syscall(ffff800021222990) at syscall+0x489 sys/arch/amd64/amd64/trap.c:585
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x7f7fffffb7c0, count: -14
ddb{0}> machine ddbcpu 1
Stopped at x86_ipi_db+0x1a: addq $0x8,%rsp
x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178
end trace frame: 0x0, count: 10
ddb{1}> trace
x86_ipi_db(ffff800020ce8ff0) at x86_ipi_db+0x1a sys/arch/amd64/amd64/db_interface.c:393
x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106
Xresume_lapic_ipi() at Xresume_lapic_ipi+0x23
acpicpu_idle() at acpicpu_idle+0x312 sys/dev/acpi/acpicpu.c:1206
sched_idle(ffff800020ce8ff0) at sched_idle+0x417 sys/kern/kern_sched.c:178
end trace frame: 0x0, count: -5