#`_ c8̰ .6ȵ:S@%9p9ō\!dv:HMƊ:\,uvm_fault(0xfffffd80695c58a8, 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 124691 22332 0 0x8000000 0 0 syz-executor.0 igmp_leavegroup(ffff800000e34480,ffff8000006ac000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000e34480) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000dfedf0) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1737 in_pcbdetach(fffffd806ac127b0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:606 udp_detach(ffff800010fddce8) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1139 soclose(ffff800010fddce8,0) at soclose+0x83 pru_detach sys/sys/protosw.h:283 [inline] soclose(ffff800010fddce8,0) at soclose+0x83 sys/kern/uipc_socket.c:411 soo_close(fffffd807184d6a0,ffff80002a20cf80) at soo_close+0x44 fdrop(fffffd807184d6a0,ffff80002a20cf80) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807184d6a0,ffff80002a20cf80) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff80002a20cf80) at fdfree+0xe4 sys/kern/kern_descrip.c:1190 exit1(ffff80002a20cf80,0,0,1) at exit1+0x38a sys/kern/kern_exit.c:199 sys_exit(ffff80002a20cf80,ffff80002a1ec170,ffff80002a1ec0c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a1ec170) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1ec170) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a036c86e310, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd80695c58a8, 0x4, 0, 1) -> e ddb{1}> trace igmp_leavegroup(ffff800000e34480,ffff8000006ac000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000e34480) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000dfedf0) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1737 in_pcbdetach(fffffd806ac127b0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:606 udp_detach(ffff800010fddce8) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1139 soclose(ffff800010fddce8,0) at soclose+0x83 pru_detach sys/sys/protosw.h:283 [inline] soclose(ffff800010fddce8,0) at soclose+0x83 sys/kern/uipc_socket.c:411 soo_close(fffffd807184d6a0,ffff80002a20cf80) at soo_close+0x44 fdrop(fffffd807184d6a0,ffff80002a20cf80) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807184d6a0,ffff80002a20cf80) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff80002a20cf80) at fdfree+0xe4 sys/kern/kern_descrip.c:1190 exit1(ffff80002a20cf80,0,0,1) at exit1+0x38a sys/kern/kern_exit.c:199 sys_exit(ffff80002a20cf80,ffff80002a1ec170,ffff80002a1ec0c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a1ec170) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1ec170) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a036c86e310, count: -14 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002a1ebd10 rbx 0x9 rdx 0 rcx 0xffff80002a20cf80 rax 0 r8 0 r9 0x1 r10 0x3d2d03e9bf710110 r11 0xe5af37dbbb7bd806 r12 0 r13 0 r14 0xffff800000e34480 r15 0xffff8000006ac000 rip 0xffffffff81613d2f igmp_leavegroup+0xaf cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a1ebce0 ss 0 igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d ddb{1}> show proc PROC (syz-executor.2) tid=333162 pid=76630 tcnt=1 stat=onproc flags process=8001018 proc=2000 runpri=32, usrpri=77, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a20cf80 forw=0xffffffffffffffff, list=0xffff8000ffff2548,0xffff80002a20cd00 process=0xffff8000ffff7558 user=0xffff80002a1e7000, vmspace=0xfffffd80695c58a8 estcpu=27, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 21008 200598 85234 0 2 0x8000000 syz-executor.6 21008 266953 85234 0 2 0xc000000 syz-executor.6 40010 506706 36094 0 2 0x8000010 syz-executor.3 40010 67057 36094 0 3 0xc000090 fsleep syz-executor.3 97912 391113 68432 0 2 0x8000000 syz-executor.7 97912 115709 68432 0 3 0xc000080 kqread syz-executor.7 97912 218668 68432 0 3 0xc000080 fsleep syz-executor.7 22332 124691 54435 0 7 0x8000000 syz-executor.0 22332 320600 54435 0 3 0xc000080 fsleep syz-executor.0 22332 348863 54435 0 3 0xc000080 fsleep syz-executor.0 22332 399543 54435 0 3 0xc000080 fsleep syz-executor.0 85234 140947 51835 0 3 0x8000082 nanoslp syz-executor.6 762 488411 0 0 3 0x14200 acct acct 54435 519120 51835 0 3 0x8000082 nanoslp syz-executor.0 79630 140042 51835 0 2 0x8000002 syz-executor.1 59518 448767 1 0 3 0x18100083 ttyin getty 97865 356533 51835 0 2 0x8000002 syz-executor.2 68432 304633 51835 0 2 0x8000002 syz-executor.7 77624 90158 51835 0 3 0x8000082 nanoslp syz-executor.5 26348 339503 0 0 3 0x14280 nfsidl nfsio 3955 424014 0 0 3 0x14280 nfsidl nfsio 99338 490846 0 0 3 0x14280 nfsidl nfsio 91997 150329 0 0 3 0x14280 nfsidl nfsio 19344 57436 0 0 3 0x14280 nfsidl nfsio 35938 6199 0 0 3 0x14280 nfsidl nfsio 39724 89458 0 0 3 0x14280 nfsidl nfsio 54152 29235 0 0 3 0x14280 nfsidl nfsio 37670 260225 0 0 3 0x14280 nfsidl nfsio 71770 213750 0 0 3 0x14280 nfsidl nfsio 68884 488991 0 0 3 0x14280 nfsidl nfsio 3690 371217 0 0 3 0x14280 nfsidl nfsio 85231 470316 0 0 3 0x14280 nfsidl nfsio 42561 147353 0 0 3 0x14280 nfsidl nfsio 37496 47174 0 0 3 0x14280 nfsidl nfsio 58504 362952 0 0 3 0x14280 nfsidl nfsio 77306 287078 0 0 3 0x14280 nfsidl nfsio 79202 411431 0 0 3 0x14280 nfsidl nfsio 79850 63027 0 0 3 0x14280 nfsidl nfsio 4448 491143 0 0 3 0x14280 nfsidl nfsio 41741 430716 0 0 3 0x14200 bored sosplice 36094 151067 51835 0 3 0x8000082 nanoslp syz-executor.3 51835 342998 6448 0 3 0x1a000082 wait syz-fuzzer 51835 335417 6448 0 3 0x1e000082 nanoslp syz-fuzzer 51835 463393 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 215466 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 153377 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 275105 6448 0 3 0x1e000082 kqread syz-fuzzer 51835 37903 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 349578 6448 0 3 0x1e000082 wait syz-fuzzer 51835 467942 6448 0 3 0x1e000082 wait syz-fuzzer 51835 155563 6448 0 3 0x1e000082 wait syz-fuzzer 51835 389953 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 156184 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 365001 6448 0 3 0x1e000082 wait syz-fuzzer 51835 7989 6448 0 3 0x1e000082 thrsleep syz-fuzzer 51835 243732 6448 0 3 0x1e000082 wait syz-fuzzer 51835 404520 6448 0 3 0x1e000082 wait syz-fuzzer 6448 183247 32001 0 3 0x810008a sigsusp ksh 32001 208095 22050 0 3 0x1800009a kqread sshd 22050 329037 1 0 3 0x18000088 kqread sshd 52985 55919 66924 74 3 0x19100092 bpf pflogd 66924 168271 1 0 3 0x18000080 sbwait pflogd 71691 439846 31452 73 3 0x19100090 kqread syslogd 31452 320280 1 0 3 0x18100082 sbwait syslogd 60456 152924 1 0 3 0x18100080 kqread resolvd 10678 264861 68178 77 3 0x18100092 kqread dhcpleased 96393 326027 68178 77 3 0x18100092 kqread dhcpleased 68178 266428 1 0 3 0x18000080 kqread dhcpleased 91820 397296 0 0 3 0x14200 bored smr 92665 341868 0 0 2 0x14200 zerothread 93153 5067 0 0 3 0x14200 aiodoned aiodoned 99629 129979 0 0 3 0x14200 syncer update 37059 365151 0 0 3 0x14200 cleaner cleaner 68841 455310 0 0 3 0x14200 reaper reaper 58758 306111 0 0 3 0x14200 pgdaemon pagedaemon 32874 518932 0 0 3 0x14200 bored viomb 79486 236548 0 0 3 0x40014200 acpi0 acpi0 12031 278835 0 0 3 0x40014200 idle1 82175 159269 0 0 3 0x14200 bored softnet3 83658 439500 0 0 3 0x14200 bored softnet2 80355 408261 0 0 3 0x14200 bored softnet1 16985 517528 0 0 3 0x14200 bored softnet0 90566 163502 0 0 3 0x14200 bored systqmp 77850 467723 0 0 3 0x14200 bored systq 94642 425146 0 0 3 0x14200 tmoslp softclockmp 99700 392875 0 0 3 0x40014200 tmoslp softclock 89740 254212 0 0 3 0x40014200 idle0 1 78208 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10196 6631K 6816K 166960K 12466 0 pcb 15 10K 10K 166960K 164 0 rtable 203 10K 11K 166960K 949 0 pf 33 9K 10K 166960K 128 0 ifaddr 39 14K 15K 166960K 136 0 ifgroup 56 2K 2K 166960K 204 0 sysctl 3 0K 1K 166960K 4 0 counters 64 36K 37K 166960K 140 0 ioctlops 0 0K 4K 166960K 1553 0 iov 0 0K 24K 166960K 112 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1369 86K 87K 166960K 2276 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 38 0 VM map 2 1K 1K 166960K 2 0 sem 18 1K 1K 166960K 37 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 15 53K 93K 166960K 1672 0 sigio 0 0K 0K 166960K 38 0 proc 71 91K 115K 166960K 1061 0 subproc 104 6K 6K 166960K 305 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 257 0 in_multi 78 5K 7K 166960K 340 0 ether_multi 1 0K 0K 166960K 16 0 mrt 1 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 746 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 341 116K 125K 166960K 16572 0 UVM aobj 69 5K 5K 166960K 82 0 pinsyscall 39 78K 108K 166960K 3255 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 115 0 NDP 12 0K 2K 166960K 97 0 temp 76 6812K 6939K 166960K 58530 0 kqueue 15 19K 26K 166960K 210 0 SYN cache 2 16K 24K 166960K 3 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 193 0 189 1 0 1 1 0 8 0 rtentry 112 312 0 222 4 1 3 4 0 8 0 unpcb 144 1078 0 1063 4 2 2 2 0 8 1 syncache 336 23 0 23 6 5 1 1 0 8 1 tcpqe 32 184 0 184 5 4 1 1 0 8 1 tcpcb 808 472 0 459 4 1 3 3 0 8 1 arp 120 56 0 42 1 0 1 1 0 8 0 inpcb 392 1554 0 1534 5 2 3 4 0 8 0 nd6 136 74 0 55 1 0 1 1 0 8 0 pkpcb 40 5 0 5 5 5 0 1 0 8 0 kcovpl 48 23 0 15 1 0 1 1 0 8 0 ppxss 1168 6 0 6 4 4 0 1 0 8 0 pffrag 232 10 0 4 1 0 1 1 0 482 0 pffrnode 88 10 0 4 1 0 1 1 0 8 0 pffrent 40 58 0 52 1 0 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 pfstitem 24 126 0 72 1 0 1 1 0 8 0 pfstkey 128 126 0 72 3 0 3 3 0 8 0 pfstate 376 126 0 72 7 0 7 7 0 8 0 pfrule 1344 21 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 1203 0 817 35 10 25 29 0 8 0 art_table 32 1204 0 817 4 0 4 4 0 8 0 art_node 16 304 0 223 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 31 0 15 1 0 1 1 0 8 0 shmpl 112 79 0 13 2 0 2 2 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3915 0 2391 96 0 96 96 0 8 0 ffsino 272 3915 0 2391 103 0 103 103 0 8 0 nchpl 144 6280 0 4547 67 0 67 67 0 8 0 uvmvnodes 80 4599 0 0 94 0 94 94 0 8 0 vnodes 216 4599 0 0 256 0 256 256 0 8 0 namei 1024 20689 0 20689 3 2 1 2 0 8 1 percpumem 16 84 0 38 1 0 1 1 0 8 0 vcpupl 2048 7 0 0 1 0 1 1 0 8 0 vmpool 696 12 0 5 1 0 1 1 0 8 0 kstatmem 264 100 0 76 3 1 2 3 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 20404 0 20404 14 13 1 8 1 8 1 plimitpl 152 191 0 175 1 0 1 1 0 8 0 sigapl 424 1983 0 1914 9 0 9 9 0 8 0 futexpl 64 20058 0 20053 1 0 1 1 0 8 0 knotepl 120 405 0 0 11 0 11 11 0 8 0 kqueuepl 216 374 0 363 1 0 1 1 0 8 0 pipepl 320 323 0 297 3 0 3 3 0 8 0 fdescpl 496 1941 0 1913 5 0 5 5 0 8 0 filepl 152 9947 0 9699 13 1 12 12 0 8 0 lockfpl 104 385 0 382 1 0 1 1 0 8 0 lockfspl 48 178 0 175 1 0 1 1 0 8 0 sessionpl 144 41 0 24 1 0 1 1 0 8 0 pgrppl 48 52 0 35 1 0 1 1 0 8 0 ucredpl 104 1250 0 1232 1 0 1 1 0 8 0 zombiepl 144 1917 0 1914 1 0 1 1 0 8 0 processpl 1136 1983 0 1914 6 0 6 6 0 8 0 procpl 656 3660 0 3569 9 0 9 9 0 8 0 srpgc 96 22 0 22 4 4 0 1 0 8 0 sosppl 168 43 0 41 1 0 1 1 0 8 0 sockpl 568 2854 0 2815 7 2 5 5 0 8 1 mcl64k 65536 15 0 0 2 0 2 2 0 8 0 mcl16k 16384 6 0 0 1 0 1 1 0 8 0 mcl12k 12288 6 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 26 0 0 4 0 4 4 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 281 0 0 36 1 35 36 0 8 0 mtagpl 96 22 0 0 1 0 1 1 0 8 0 mbufpl 256 986 0 0 58 0 58 58 0 8 0 bufpl 280 7209 0 954 447 0 447 447 0 8 0 anonpl 24 346986 0 340630 99 39 60 64 0 186 6 amapchunkpl 152 52416 0 51719 40 6 34 36 0 158 3 amappl16 200 8802 0 8640 51 34 17 20 0 8 5 amappl15 192 46 0 46 1 1 0 1 0 8 0 amappl14 184 229 0 214 2 1 1 2 0 8 0 amappl13 176 16 0 15 3 2 1 1 0 8 0 amappl12 168 2902 0 2871 3 1 2 2 0 8 0 amappl11 160 53 0 38 1 0 1 1 0 8 0 amappl10 152 69 0 56 1 0 1 1 0 8 0 amappl9 144 172 0 172 3 2 1 1 0 8 1 amappl8 136 356 0 272 3 0 3 3 0 8 0 amappl7 128 98 0 84 1 0 1 1 0 8 0 amappl6 120 557 0 534 2 1 1 2 0 8 0 amappl5 112 250 0 235 1 0 1 1 0 8 0 amappl4 104 796 0 751 3 1 2 3 0 8 0 amappl3 96 10628 0 10544 3 0 3 3 0 8 0 amappl2 88 2460 0 2383 4 2 2 4 0 8 0 amappl1 80 16230 0 15692 24 12 12 23 0 8 0 amappl 88 15759 0 15554 6 0 6 6 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 81 0 13 2 0 2 2 0 8 0 uaddrrnd 24 1953 0 1918 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1953 0 1918 1 0 1 1 0 8 0 vmmpekpl 168 17852 0 17795 4 0 4 4 0 8 0 vmmpepl 168 140785 0 138725 147 44 103 120 0 357 4 vmsppl 440 1952 0 1918 7 2 5 5 0 8 0 rwobjpl 56 44567 0 38642 88 4 84 84 0 8 0 pdppl 4096 3913 0 3843 192 118 74 83 0 8 4 pvpl 32 48259 0 0 390 0 390 390 0 265 0 pmappl 248 1952 0 1918 5 2 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 554 0 143 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82ca5ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd80695c56f0,abc4fb5c000,0,2) at uvm_fault+0x189 sys/uvm/uvm_fault.c:622 upageflttrap(ffff80002a256f10,abc4fb5c140) at upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a256f10) at usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f6f63b0c320, count: 4 ddb{0}> trace x86_ipi_db(ffffffff82ca5ff0) at x86_ipi_db+0x1e 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+0x27 __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 softintr_dispatch(0) at softintr_dispatch+0x52 sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82d9fab0) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_fault(fffffd80695c56f0,abc4fb5c000,0,2) at uvm_fault+0x189 sys/uvm/uvm_fault.c:622 upageflttrap(ffff80002a256f10,abc4fb5c140) at upageflttrap+0x8b sys/arch/amd64/amd64/trap.c:188 usertrap(ffff80002a256f10) at usertrap+0x227 sys/arch/amd64/amd64/trap.c:436 recall_trap() at recall_trap+0x8 end of kernel end trace frame: 0x7f6f63b0c320, count: -11 ddb{0}> machine ddbcpu 1 Stopped at igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d igmp_leavegroup(ffff800000e34480,ffff8000006ac000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000e34480) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000dfedf0) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1737 in_pcbdetach(fffffd806ac127b0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:606 udp_detach(ffff800010fddce8) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1139 soclose(ffff800010fddce8,0) at soclose+0x83 pru_detach sys/sys/protosw.h:283 [inline] soclose(ffff800010fddce8,0) at soclose+0x83 sys/kern/uipc_socket.c:411 soo_close(fffffd807184d6a0,ffff80002a20cf80) at soo_close+0x44 fdrop(fffffd807184d6a0,ffff80002a20cf80) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807184d6a0,ffff80002a20cf80) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff80002a20cf80) at fdfree+0xe4 sys/kern/kern_descrip.c:1190 exit1(ffff80002a20cf80,0,0,1) at exit1+0x38a sys/kern/kern_exit.c:199 sys_exit(ffff80002a20cf80,ffff80002a1ec170,ffff80002a1ec0c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a1ec170) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1ec170) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a036c86e310, count: 1 ddb{1}> trace igmp_leavegroup(ffff800000e34480,ffff8000006ac000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000e34480) at in_delmulti+0xd3 sys/netinet/in.c:908 ip_freemoptions(ffff800000dfedf0) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1737 in_pcbdetach(fffffd806ac127b0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:606 udp_detach(ffff800010fddce8) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1139 soclose(ffff800010fddce8,0) at soclose+0x83 pru_detach sys/sys/protosw.h:283 [inline] soclose(ffff800010fddce8,0) at soclose+0x83 sys/kern/uipc_socket.c:411 soo_close(fffffd807184d6a0,ffff80002a20cf80) at soo_close+0x44 fdrop(fffffd807184d6a0,ffff80002a20cf80) at fdrop+0xd5 sys/kern/kern_descrip.c:1274 closef(fffffd807184d6a0,ffff80002a20cf80) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff80002a20cf80) at fdfree+0xe4 sys/kern/kern_descrip.c:1190 exit1(ffff80002a20cf80,0,0,1) at exit1+0x38a sys/kern/kern_exit.c:199 sys_exit(ffff80002a20cf80,ffff80002a1ec170,ffff80002a1ec0c0) at sys_exit+0x1a sys/kern/kern_exit.c:89 syscall(ffff80002a1ec170) at syscall+0x854 mi_syscall sys/sys/syscall_mi.h:180 [inline] syscall(ffff80002a1ec170) at syscall+0x854 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7a036c86e310, count: -14