uvm_fault(0xfffffd806efe2918, 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 275855 63571 0 0x14000 0x200 0 reaper igmp_leavegroup(ffff800000d16840,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d16840) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d3d540) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53e8a0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd806f589d70) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806f589d70,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806f589d70,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd806559e3b0,ffff8000212378a0) at soo_close+0x44 fdrop(fffffd806559e3b0,ffff8000212378a0) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd806559e3b0,ffff8000212378a0) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff8000212378a0) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff8000212378a0,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:197 single_thread_check_locked(ffff8000212378a0,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2019 userret(ffff8000212378a0) at userret+0x236 single_thread_check sys/kern/kern_sig.c:2058 [inline] userret(ffff8000212378a0) at userret+0x236 sys/kern/kern_sig.c:2007 syscall(ffff80002e419cd0) at syscall+0x4ea mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff80002e419cd0) at syscall+0x4ea sys/arch/amd64/amd64/trap.c:653 end trace frame: 0xffff80002e419d50, 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{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: uvm_fault(0xfffffd806efe2918, 0x4, 0, 1) -> e ddb{1}> trace igmp_leavegroup(ffff800000d16840,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d16840) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d3d540) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53e8a0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd806f589d70) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806f589d70,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806f589d70,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd806559e3b0,ffff8000212378a0) at soo_close+0x44 fdrop(fffffd806559e3b0,ffff8000212378a0) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd806559e3b0,ffff8000212378a0) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff8000212378a0) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff8000212378a0,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:197 single_thread_check_locked(ffff8000212378a0,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2019 userret(ffff8000212378a0) at userret+0x236 single_thread_check sys/kern/kern_sig.c:2058 [inline] userret(ffff8000212378a0) at userret+0x236 sys/kern/kern_sig.c:2007 syscall(ffff80002e419cd0) at syscall+0x4ea mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff80002e419cd0) at syscall+0x4ea sys/arch/amd64/amd64/trap.c:653 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ced2b3c4400, count: -15 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff80002e4197e0 rbx 0x3 rdx 0 rcx 0x1 rax 0 r8 0 r9 0x1 r10 0x9a73ec3b621d7e43 r11 0xc9f3bc68dc4d8ec r12 0 r13 0x3 r14 0xffff800000d16840 r15 0xffff8000006b8000 rip 0xffffffff820007bf igmp_leavegroup+0xaf cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e4197b0 ss 0x10 igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d ddb{1}> show proc PROC (syz-executor.1) pid=477863 stat=onproc flags process=1008 proc=82000 pri=32, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff80002128f080,0xffff8000212a1608 process=0xffff800021292e28 user=0xffff80002e414000, vmspace=0xfffffd806efe2918 estcpu=32, cpticks=1, pctcpu=0.1 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 42528 375450 83961 0 3 0x80 nanoslp syz-executor.6 42528 59278 83961 0 3 0x4000080 netcon syz-executor.6 42528 304817 83961 0 3 0x4000080 fsleep syz-executor.6 77940 2854 1698 0 3 0x80 nanoslp syz-executor.5 77940 911 1698 0 3 0x4000080 fsleep syz-executor.5 77940 388828 1698 0 3 0x4000080 fsleep syz-executor.5 77940 401886 1698 0 3 0x4000080 fsleep syz-executor.5 6094 476070 10839 0 3 0x82 nanoslp syz-executor.3 54044 295470 0 0 3 0x14200 bored sosplice 79914 194133 10839 0 3 0x82 nanoslp syz-executor.7 83961 482021 10839 0 3 0x82 nanoslp syz-executor.6 1698 435189 10839 0 3 0x82 nanoslp syz-executor.5 35034 111194 10839 0 3 0x82 nanoslp syz-executor.4 22971 2944 10839 0 3 0x82 nanoslp syz-executor.1 69455 480405 10839 0 3 0x82 piperd syz-executor.0 10839 469749 62978 0 3 0x82 wait syz-fuzzer 10839 280693 62978 0 3 0x4000082 nanoslp syz-fuzzer 10839 357947 62978 0 3 0x4000082 wait syz-fuzzer 10839 291300 62978 0 3 0x4000082 wait syz-fuzzer 10839 229489 62978 0 3 0x4000082 thrsleep syz-fuzzer 10839 233119 62978 0 3 0x4000082 wait syz-fuzzer 10839 121982 62978 0 3 0x4000082 thrsleep syz-fuzzer 10839 451039 62978 0 3 0x4000082 kqread syz-fuzzer 10839 177347 62978 0 3 0x4000082 thrsleep syz-fuzzer 10839 409792 62978 0 3 0x4000082 wait syz-fuzzer 10839 41246 62978 0 3 0x4000082 thrsleep syz-fuzzer 10839 363303 62978 0 3 0x4000082 wait syz-fuzzer 10839 308497 62978 0 3 0x4000082 wait syz-fuzzer 10839 175335 62978 0 3 0x4000002 biowait syz-fuzzer 10839 43601 62978 0 3 0x4000082 thrsleep syz-fuzzer 10839 119795 62978 0 3 0x4000082 thrsleep syz-fuzzer 62978 454161 15346 0 3 0x10008a sigsusp ksh 15346 151713 19289 0 3 0x9a kqread sshd 90551 296087 1 0 3 0x100083 ttyin getty 19289 231706 1 0 3 0x88 kqread sshd 81506 273168 52274 74 3 0x1100092 bpf pflogd 52274 389189 1 0 3 0x80 netio pflogd 81220 182007 8648 73 3 0x1100090 kqread syslogd 8648 161797 1 0 3 0x100082 netio syslogd 70451 2246 1 0 3 0x100080 kqread resolvd 87175 193152 55948 77 3 0x100092 kqread dhcpleased 42 388642 55948 77 3 0x100092 kqread dhcpleased 55948 465205 1 0 3 0x80 kqread dhcpleased 36071 490107 0 0 3 0x14200 bored smr 27943 92282 0 0 2 0x14200 zerothread 73959 365301 0 0 3 0x14200 aiodoned aiodoned 20508 201851 0 0 3 0x14200 syncer update 7339 138931 0 0 3 0x14200 cleaner cleaner 63571 275855 0 0 7 0x14200 reaper 16930 507417 0 0 3 0x14200 pgdaemon pagedaemon 7941 21943 0 0 3 0x14200 bored viomb 18954 314574 0 0 3 0x40014200 acpi0 acpi0 76565 427946 0 0 3 0x40014200 idle1 39385 460042 0 0 3 0x14200 bored softnet3 17390 94822 0 0 3 0x14200 bored softnet2 24810 282030 0 0 3 0x14200 bored softnet1 50177 247938 0 0 3 0x14200 bored softnet0 43577 130058 0 0 3 0x14200 bored systqmp 83847 237059 0 0 3 0x14200 bored systq 38536 245243 0 0 3 0x40014200 bored softclock 17098 85973 0 0 3 0x40014200 idle0 1 404594 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 10839 (syz-fuzzer) thread 0xffff80002128fb60 (175335) exclusive rrwlock inode r = 0 (0xfffffd8067fd9d58) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 ufs_ihashins+0x46 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1353 #6 ffs_inode_alloc+0x1c2 sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf8 sys/ufs/ufs/ufs_vnops.c:1149 #8 VOP_MKDIR+0xc3 sys/kern/vfs_vops.c:388 #9 domkdirat+0x125 sys/kern/vfs_syscalls.c:3074 #10 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #10 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f3344d8) #0 witness_lock+0x44d #1 rw_enter+0x3e5 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8f sys/kern/kern_rwlock.c:465 #3 VOP_LOCK+0x8b sys/kern/vfs_vops.c:518 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0xd5 sys/kern/vfs_lookup.c:418 #6 namei+0x55a sys/kern/vfs_lookup.c:250 #7 domkdirat+0x79 sys/kern/vfs_syscalls.c:3059 #8 syscall+0x5e2 mi_syscall sys/sys/syscall_mi.h:110 [inline] #8 syscall+0x5e2 sys/arch/amd64/amd64/trap.c:632 #9 Xsyscall+0x128 Process 63571 (reaper) thread 0xffff8000211acae8 (275855) kernel: protection fault trap, code=0 Faulted in DDB; continuing... ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10185 6490K 6667K 78643K 11376 0 pcb 14 14K 19K 78643K 333 0 rtable 197 14K 15K 78643K 417 0 ifaddr 73 24K 25K 78643K 106 0 sysctl 2 0K 0K 78643K 2 0 counters 58 35K 36K 78643K 72 0 ioctlops 0 0K 4K 78643K 1540 0 iov 0 0K 0K 78643K 22 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1297 81K 81K 78643K 1492 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 17 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 132 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 89K 78643K 562 0 sigio 0 0K 0K 78643K 35 0 proc 69 91K 128K 78643K 578 0 subproc 91 5K 6K 78643K 117 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 0K 78643K 36 0 in_multi 82 5K 6K 78643K 126 0 ether_multi 2 0K 0K 78643K 9 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 55 254K 254K 78643K 55 0 exec 0 0K 1K 78643K 408 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 335 79K 102K 78643K 8014 0 UVM aobj 98 3K 3K 78643K 101 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 6 0 NDP 12 0K 1K 78643K 35 0 temp 101 5860K 5925K 78643K 7819 0 kqueue 12 18K 26K 78643K 67 0 SYN cache 2 16K 16K 78643K 2 0 ddb{1}> 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 49 0 46 1 0 1 1 0 8 0 rtentry 112 124 0 37 4 0 4 4 0 8 0 unpcb 144 390 0 375 4 3 1 4 0 8 0 syncache 296 7 0 7 2 2 0 1 0 8 0 tcpqe 32 374 0 374 2 2 0 1 0 8 0 tcpcb 776 183 0 175 8 6 2 8 0 8 1 arp 120 20 0 4 1 0 1 1 0 8 0 inpcb 368 778 0 765 15 7 8 14 0 8 6 nd6 136 27 0 6 1 0 1 1 0 8 0 kcovpl 48 9 0 2 1 0 1 1 0 8 0 ppxss 1256 3 0 3 2 1 1 1 0 8 1 pppxif 1456 2 0 2 1 1 0 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 40 0 11 1 0 1 1 0 8 0 pfstkey 128 40 0 11 2 0 2 2 0 8 0 pfstate 384 40 0 11 4 0 4 4 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 256 511 0 165 29 4 25 29 0 8 0 art_table 32 512 0 165 4 0 4 4 0 8 0 art_node 16 123 0 47 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 14 2 1 1 1 0 8 0 semapl 112 130 0 120 1 0 1 1 0 8 0 shmpl 112 98 0 3 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 2101 0 653 91 0 91 91 0 8 0 ffsino 272 2101 0 653 97 0 97 97 0 8 0 nchpl 144 2969 0 2478 63 40 23 63 0 8 0 uvmvnodes 80 2288 0 0 47 0 47 47 0 8 0 vnodes 216 2288 0 0 128 0 128 128 0 8 0 namei 1024 10446 0 10445 2 1 1 2 0 8 0 percpumem 16 49 0 7 1 0 1 1 0 8 0 kstatmem 264 34 0 10 2 0 2 2 0 8 0 scxspl 216 10010 0 10009 9 8 1 8 0 8 0 plimitpl 152 66 0 51 1 0 1 1 0 8 0 sigapl 424 883 0 837 8 2 6 7 0 8 0 futexpl 64 4650 0 4646 1 0 1 1 0 8 0 knotepl 120 303 0 0 9 0 9 9 0 8 0 kqueuepl 216 74 0 66 1 0 1 1 0 8 0 pipepl 320 189 0 164 3 0 3 3 0 8 0 fdescpl 496 865 0 840 5 1 4 5 0 8 0 filepl 152 5055 0 4829 19 3 16 17 0 8 6 lockfpl 104 92 0 90 1 0 1 1 0 8 0 lockfspl 48 34 0 32 1 0 1 1 0 8 0 sessionpl 144 25 0 9 1 0 1 1 0 8 0 pgrppl 48 39 0 23 1 0 1 1 0 8 0 ucredpl 104 723 0 711 1 0 1 1 0 8 0 zombiepl 144 841 0 837 1 0 1 1 0 8 0 processpl 1072 883 0 837 4 0 4 4 0 8 0 procpl 696 1747 0 1678 8 0 8 8 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 10 0 10 1 1 0 1 0 8 0 sockpl 488 1217 0 1186 29 17 12 22 0 8 7 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl16k 16384 3 0 0 1 0 1 1 0 8 0 mcl12k 12288 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 9 0 0 2 0 2 2 0 8 0 mcl4k 4096 8 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 534 0 0 66 0 66 66 0 8 0 mtagpl 96 37 0 0 1 0 1 1 0 8 0 mbufpl 256 929 0 0 58 0 58 58 0 8 0 bufpl 288 4893 0 149 339 0 339 339 0 8 0 anonpl 24 240676 0 228427 119 12 107 119 0 186 4 amapchunkpl 152 27429 0 26554 52 6 46 47 0 158 8 amappl16 200 6500 0 6045 37 9 28 37 0 8 0 amappl15 192 13 0 13 1 1 0 1 0 8 0 amappl14 184 162 0 149 2 1 1 2 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 1571 0 1545 3 1 2 2 0 8 0 amappl11 160 67 0 51 1 0 1 1 0 8 0 amappl10 152 104 0 95 1 0 1 1 0 8 0 amappl9 144 181 0 181 2 2 0 2 0 8 0 amappl8 136 209 0 155 2 0 2 2 0 8 0 amappl7 128 56 0 39 1 0 1 1 0 8 0 amappl6 120 281 0 261 2 1 1 2 0 8 0 amappl5 112 173 0 163 1 0 1 1 0 8 0 amappl4 104 661 0 622 2 0 2 2 0 8 0 amappl3 96 5182 0 5098 4 1 3 3 0 8 0 amappl2 88 1099 0 1034 3 1 2 3 0 8 0 amappl1 80 11749 0 11208 23 10 13 23 0 8 0 amappl 88 7465 0 7237 7 0 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 72 100 0 3 2 0 2 2 0 8 0 uaddrrnd 24 866 0 840 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 866 0 840 1 0 1 1 0 8 0 vmmpekpl 168 12619 0 12559 4 0 4 4 0 8 0 vmmpepl 168 75814 0 73547 127 12 115 121 0 357 8 vmsppl 464 865 0 839 5 1 4 5 0 8 0 rwobjpl 56 28386 0 24480 58 2 56 56 0 8 0 pdppl 4096 1740 0 1678 154 84 70 82 0 8 8 pvpl 32 528370 0 510775 325 26 299 325 0 265 119 pmappl 248 865 0 839 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 865 0 99 22 0 22 22 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c1fff0) 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+0x23 __mp_lock(ffffffff82cc6088) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cc6088) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211b9590,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd80704ffaf8) at uvm_map_teardown+0x2c8 sys/uvm/uvm_map.c:2585 uvmspace_free(fffffd80704ffaf8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211acae8) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: 7 ddb{0}> trace x86_ipi_db(ffffffff82c1fff0) 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+0x23 __mp_lock(ffffffff82cc6088) at __mp_lock+0x122 __mp_lock_spin sys/kern/kern_lock.c:116 [inline] __mp_lock(ffffffff82cc6088) at __mp_lock+0x122 sys/kern/kern_lock.c:147 uvm_unmap_detach(ffff8000211b9590,1) at uvm_unmap_detach+0x113 sys/uvm/uvm_map.c:1382 uvm_map_teardown(fffffd80704ffaf8) at uvm_map_teardown+0x2c8 sys/uvm/uvm_map.c:2585 uvmspace_free(fffffd80704ffaf8) at uvmspace_free+0xa6 sys/uvm/uvm_map.c:3503 reaper(ffff8000211acae8) at reaper+0x19a sys/kern/kern_exit.c:449 end trace frame: 0x0, count: -8 ddb{0}> machine ddbcpu 1 Stopped at igmp_leavegroup+0xaf: movl 0x4(%rax),%r12d igmp_leavegroup(ffff800000d16840,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d16840) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d3d540) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53e8a0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd806f589d70) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806f589d70,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806f589d70,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd806559e3b0,ffff8000212378a0) at soo_close+0x44 fdrop(fffffd806559e3b0,ffff8000212378a0) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd806559e3b0,ffff8000212378a0) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff8000212378a0) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff8000212378a0,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:197 single_thread_check_locked(ffff8000212378a0,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2019 userret(ffff8000212378a0) at userret+0x236 single_thread_check sys/kern/kern_sig.c:2058 [inline] userret(ffff8000212378a0) at userret+0x236 sys/kern/kern_sig.c:2007 syscall(ffff80002e419cd0) at syscall+0x4ea mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff80002e419cd0) at syscall+0x4ea sys/arch/amd64/amd64/trap.c:653 end trace frame: 0xffff80002e419d50, count: 0 ddb{1}> trace igmp_leavegroup(ffff800000d16840,ffff8000006b8000) at igmp_leavegroup+0xaf sys/netinet/igmp.c:512 in_delmulti(ffff800000d16840) at in_delmulti+0xd8 sys/netinet/in.c:908 ip_freemoptions(ffff800000d3d540) at ip_freemoptions+0x5d sys/netinet/ip_output.c:1770 in_pcbdetach(fffffd806f53e8a0) at in_pcbdetach+0x97 sys/netinet/in_pcb.c:591 udp_detach(fffffd806f589d70) at udp_detach+0x3f sys/netinet/udp_usrreq.c:1113 soclose(fffffd806f589d70,0) at soclose+0x253 pru_detach sys/sys/protosw.h:281 [inline] soclose(fffffd806f589d70,0) at soclose+0x253 sys/kern/uipc_socket.c:397 soo_close(fffffd806559e3b0,ffff8000212378a0) at soo_close+0x44 fdrop(fffffd806559e3b0,ffff8000212378a0) at fdrop+0xcb sys/kern/kern_descrip.c:1274 closef(fffffd806559e3b0,ffff8000212378a0) at closef+0x120 sys/kern/kern_descrip.c:1258 fdfree(ffff8000212378a0) at fdfree+0xf4 sys/kern/kern_descrip.c:1190 exit1(ffff8000212378a0,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:197 single_thread_check_locked(ffff8000212378a0,0,0) at single_thread_check_locked+0x237 sys/kern/kern_sig.c:2019 userret(ffff8000212378a0) at userret+0x236 single_thread_check sys/kern/kern_sig.c:2058 [inline] userret(ffff8000212378a0) at userret+0x236 sys/kern/kern_sig.c:2007 syscall(ffff80002e419cd0) at syscall+0x4ea mi_syscall_return sys/sys/syscall_mi.h:137 [inline] syscall(ffff80002e419cd0) at syscall+0x4ea sys/arch/amd64/amd64/trap.c:653 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7ced2b3c4400, count: -15