uvm_fault(0xfffffd805b353a20, 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(ffff800000c37500) at igmp_leavegroup+0x80 sys/netinet/igmp.c:521 in_delmulti(ffff800000c37500) at in_delmulti+0xb7 sys/netinet/in.c:920 ip_freemoptions(ffff8000006c67a0) at ip_freemoptions+0x4d sys/netinet/ip_output.c:1764 in_pcbdetach(fffffd806689e4c8) at in_pcbdetach+0xf3 sys/netinet/in_pcb.c:584 udp_detach(fffffd8066dc9028) at udp_detach+0x3b sys/netinet/udp_usrreq.c:1249 soclose(fffffd8066dc9028,0) at soclose+0x255 sys/kern/uipc_socket.c:351 soo_close(fffffd8067d140b8,ffff800021158a90) at soo_close+0x40 fdrop(fffffd8067d140b8,ffff800021158a90) at fdrop+0xc7 sys/kern/kern_descrip.c:1279 closef(fffffd8067d140b8,ffff800021158a90) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021158a90) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021158a90,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:202 single_thread_check_locked(ffff800021158a90,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1963 userret(ffff800021158a90) at userret+0x27a single_thread_check sys/kern/kern_sig.c:2004 [inline] userret(ffff800021158a90) at userret+0x27a sys/kern/kern_sig.c:1951 syscall(ffff80002e4455d0) at syscall+0x57e mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff80002e4455d0) at syscall+0x57e sys/arch/amd64/amd64/trap.c:607 end trace frame: 0xffff80002e445650, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault(0xfffffd805b353a20, 0x4, 0, 1) -> e ddb{0}> trace igmp_leavegroup(ffff800000c37500) at igmp_leavegroup+0x80 sys/netinet/igmp.c:521 in_delmulti(ffff800000c37500) at in_delmulti+0xb7 sys/netinet/in.c:920 ip_freemoptions(ffff8000006c67a0) at ip_freemoptions+0x4d sys/netinet/ip_output.c:1764 in_pcbdetach(fffffd806689e4c8) at in_pcbdetach+0xf3 sys/netinet/in_pcb.c:584 udp_detach(fffffd8066dc9028) at udp_detach+0x3b sys/netinet/udp_usrreq.c:1249 soclose(fffffd8066dc9028,0) at soclose+0x255 sys/kern/uipc_socket.c:351 soo_close(fffffd8067d140b8,ffff800021158a90) at soo_close+0x40 fdrop(fffffd8067d140b8,ffff800021158a90) at fdrop+0xc7 sys/kern/kern_descrip.c:1279 closef(fffffd8067d140b8,ffff800021158a90) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021158a90) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021158a90,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:202 single_thread_check_locked(ffff800021158a90,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1963 userret(ffff800021158a90) at userret+0x27a single_thread_check sys/kern/kern_sig.c:2004 [inline] userret(ffff800021158a90) at userret+0x27a sys/kern/kern_sig.c:1951 syscall(ffff80002e4455d0) at syscall+0x57e mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff80002e4455d0) at syscall+0x57e sys/arch/amd64/amd64/trap.c:607 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeec70, count: -15 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002e4450d0 rbx 0 rdx 0 rcx 0x1 rax 0 r8 0 r9 0 r10 0x74e3cae4a752325a r11 0x80f2921f9ab25240 r12 0 r13 0x3 r14 0xffff800000689000 r15 0xffff800000c37500 rip 0xffffffff81be6000 igmp_leavegroup+0x80 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002e4450a0 ss 0x10 igmp_leavegroup+0x80: movl 0x4(%rax),%r12d ddb{0}> show proc PROC (syz-executor.0) pid=357713 stat=onproc flags process=1008 proc=82000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000211597b0,0xffff800021159d00 process=0xffff80002e3c1910 user=0xffff80002e440000, vmspace=0xfffffd805b353a20 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 31138 351481 66027 0 2 0 syz-executor.1 41442 502528 4978 0 2 0 syz-executor.2 41442 124251 4978 0 3 0x4000080 fsleep syz-executor.2 41442 226172 4978 0 3 0x4000080 fsleep syz-executor.2 7709 272021 31465 0 2 0 syz-executor.7 7709 118816 31465 0 2 0x4000000 syz-executor.7 47811 78035 66998 0 2 0 syz-executor.4 47811 358781 66998 0 3 0x4000080 fsleep syz-executor.4 31465 451888 51750 0 3 0x82 nanoslp syz-executor.7 66027 513835 51750 0 2 0x482 syz-executor.1 66998 256045 51750 0 2 0x482 syz-executor.4 32513 283001 51750 0 2 0x2 syz-executor.5 49932 408909 0 0 3 0x14200 bored sosplice 55655 177412 0 0 3 0x14280 nfsidl nfsio 39145 33075 0 0 3 0x14280 nfsidl nfsio 37174 344088 0 0 3 0x14280 nfsidl nfsio 58156 154034 0 0 3 0x14280 nfsidl nfsio 83953 170481 0 0 3 0x14280 nfsidl nfsio 81053 179489 0 0 3 0x14280 nfsidl nfsio 4284 178204 0 0 3 0x14280 nfsidl nfsio 84972 213689 0 0 3 0x14280 nfsidl nfsio 24047 17580 0 0 3 0x14280 nfsidl nfsio 58261 267941 0 0 3 0x14280 nfsidl nfsio 61728 456703 0 0 3 0x14280 nfsidl nfsio 5521 403073 0 0 3 0x14280 nfsidl nfsio 48788 156290 0 0 3 0x14280 nfsidl nfsio 18398 322647 0 0 3 0x14280 nfsidl nfsio 55017 98729 0 0 3 0x14280 nfsidl nfsio 73204 446783 0 0 3 0x14280 nfsidl nfsio 45957 295954 0 0 3 0x14280 nfsidl nfsio 20643 485977 0 0 3 0x14280 nfsidl nfsio 30018 391271 0 0 3 0x14280 nfsidl nfsio 71455 65897 0 0 3 0x14280 nfsidl nfsio 83890 208527 51750 0 2 0x2 syz-executor.6 60642 341963 51750 0 3 0x82 nanoslp syz-executor.3 4978 245282 51750 0 3 0x82 nanoslp syz-executor.2 56522 288177 51750 0 2 0x482 syz-executor.0 51750 514125 46632 0 2 0x482 syz-fuzzer 51750 229616 46632 0 3 0x4000082 nanoslp syz-fuzzer 51750 267569 46632 0 3 0x4000082 thrsleep syz-fuzzer 51750 316094 46632 0 3 0x4000082 kqread syz-fuzzer 51750 494532 46632 0 3 0x4000082 thrsleep syz-fuzzer 51750 289088 46632 0 3 0x4000082 thrsleep syz-fuzzer 51750 494954 46632 0 3 0x4000082 thrsleep syz-fuzzer 51750 214637 46632 0 3 0x4000082 thrsleep syz-fuzzer 46632 337071 73012 0 3 0x10008a sigsusp ksh 73012 244101 69172 0 3 0x9a kqread sshd 8381 511221 1 0 3 0x100083 ttyin getty 69172 152403 1 0 3 0x88 kqread sshd 11232 256755 91102 74 3 0x1100092 bpf pflogd 91102 471653 1 0 3 0x80 netio pflogd 42817 433762 64417 73 3 0x1100090 kqread syslogd 64417 434828 1 0 3 0x100082 netio syslogd 1654 515964 1 0 3 0x100080 kqread resolvd 25217 10219 98050 77 3 0x100092 kqread dhcpleased 24078 32643 98050 77 3 0x100092 kqread dhcpleased 98050 268091 1 0 3 0x80 kqread dhcpleased 18221 500565 0 0 3 0x14200 bored smr 51829 245018 0 0 2 0x14200 zerothread 47357 261576 0 0 3 0x14200 aiodoned aiodoned 81806 135534 0 0 3 0x14200 syncer update 37201 497976 0 0 3 0x14200 cleaner cleaner 75576 320054 0 0 3 0x14200 reaper reaper 56290 363371 0 0 3 0x14200 pgdaemon pagedaemon 47020 316000 0 0 3 0x14200 bored viomb 71659 90823 0 0 3 0x40014200 acpi0 acpi0 7043 499960 0 0 7 0x40014200 idle1 71573 265205 0 0 3 0x14200 bored softnet 97032 492489 0 0 3 0x14200 bored systqmp 33079 85028 0 0 3 0x14200 bored systq 63532 143881 0 0 3 0x40014200 bored softclock 66908 288499 0 0 3 0x40014200 idle0 1 20741 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 7709 (syz-executor.7) thread 0xffff80002121d268 (118816) exclusive rrwlock inode r = 0 (0xfffffd806feed708) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806feed818) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 Process 32513 (syz-executor.5) thread 0xffff800021157ce8 (283001) exclusive rrwlock inode r = 0 (0xfffffd806f8cec58) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 ufs_ihashins+0x42 sys/ufs/ufs/ufs_ihash.c:140 #5 ffs_vget+0x141 sys/ufs/ffs/ffs_vfsops.c:1347 #6 ffs_inode_alloc+0x1be sys/ufs/ffs/ffs_alloc.c:394 #7 ufs_mkdir+0xf4 sys/ufs/ufs/ufs_vnops.c:1162 #8 VOP_MKDIR+0xbf sys/kern/vfs_vops.c:404 #9 domkdirat+0x121 sys/kern/vfs_syscalls.c:3101 #10 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #10 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ea04d68) #0 witness_lock+0x44d #1 rw_enter+0x3e1 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0x8b sys/kern/kern_rwlock.c:461 #3 VOP_LOCK+0x87 sys/kern/vfs_vops.c:534 #4 vn_lock+0x84 sys/kern/vfs_vnops.c:579 #5 vfs_lookup+0xd1 sys/kern/vfs_lookup.c:413 #6 namei+0x36a sys/kern/vfs_lookup.c:245 #7 domkdirat+0x75 sys/kern/vfs_syscalls.c:3086 #8 syscall+0x489 mi_syscall sys/sys/syscall_mi.h:102 [inline] #8 syscall+0x489 sys/arch/amd64/amd64/trap.c:585 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10227 6753K 7018K 78643K 16890 0 pcb 13 14K 15K 78643K 394 0 rtable 227 8K 15K 78643K 1160 0 ifaddr 87 18K 19K 78643K 315 0 counters 56 35K 35K 78643K 94 0 ioctlops 0 0K 4K 78643K 2262 0 iov 0 0K 24K 78643K 316 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 5 0 vnodes 1404 88K 88K 78643K 2781 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 25 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 460 0 dirhash 9 1K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 15 53K 85K 78643K 2376 0 sigio 0 0K 0K 78643K 54 0 proc 70 87K 111K 78643K 771 0 subproc 104 6K 6K 78643K 156 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 0K 78643K 549 0 in_multi 93 6K 7K 78643K 284 0 ether_multi 1 0K 0K 78643K 39 0 mrt 0 0K 0K 78643K 19 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 187 837K 837K 78643K 187 0 exec 0 0K 2K 78643K 1272 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 383 324K 326K 78643K 32110 0 UVM aobj 115 7K 8K 78643K 127 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 187 0 NDP 12 0K 1K 78643K 59 0 temp 142 4727K 4799K 78643K 30559 0 kqueue 12 18K 26K 78643K 139 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 120 189 0 186 1 0 1 1 0 8 0 rtentry 112 328 0 228 4 0 4 4 0 8 0 unpcb 136 1342 0 1327 15 9 6 6 0 8 5 syncache 296 17 0 17 5 5 0 1 0 8 0 tcpqe 32 21 0 21 5 5 0 1 0 8 0 tcpcb 736 1901 0 1845 41 35 6 17 0 8 0 arp 120 97 0 77 1 0 1 1 0 8 0 inpcb 304 3482 0 3468 41 37 4 17 0 8 2 rttmr 72 7 0 7 4 4 0 1 0 8 0 nd6 48 41 0 19 1 0 1 1 0 8 0 pkpcb 40 18 0 18 4 4 0 1 0 8 0 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1248 6 0 6 1 1 0 1 0 8 0 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pffrag 232 12 0 10 2 1 1 1 0 482 0 pffrnode 88 12 0 10 2 1 1 1 0 8 0 pffrent 40 142 0 140 2 1 1 1 0 8 0 pfosfp 40 1431 0 1007 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrke_plain 168 2 0 2 1 0 1 1 0 8 1 pfrktable 1344 135 0 133 3 2 1 2 0 8 0 pftag 88 9 0 6 1 0 1 1 0 8 0 pfqueue 264 8 0 8 1 1 0 1 0 8 0 pfstitem 24 23 0 21 1 0 1 1 0 8 0 pfstkey 112 25 0 23 1 0 1 1 0 8 0 pfstate 320 23 0 21 2 1 1 2 0 8 0 pfrule 1360 173 0 165 3 2 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 937 0 519 30 3 27 29 0 8 0 art_table 32 938 0 519 4 0 4 4 0 8 0 art_node 16 323 0 235 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 458 0 448 1 0 1 1 0 8 0 shmpl 112 124 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 10 3 1 2 3 0 8 0 dino2pl 256 4529 0 3086 91 0 91 91 0 8 0 ffsino 272 4529 0 3086 97 0 97 97 0 8 0 nchpl 144 7813 0 6189 63 0 63 63 0 8 0 rtmask 32 4 0 4 1 0 1 1 0 8 1 uvmvnodes 80 5741 0 0 118 0 118 118 0 8 0 vnodes 224 5741 0 0 338 0 338 338 0 8 0 namei 1024 28172 0 28170 5 4 1 2 0 8 0 percpumem 16 59 0 19 1 0 1 1 0 8 0 vcpupl 2048 214 0 0 27 0 27 27 0 8 0 vmpool 560 217 0 3 16 0 16 16 0 8 0 pfiaddrpl 120 32 0 28 1 0 1 1 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 22451 0 22451 11 10 1 8 0 8 1 plimitpl 152 370 0 355 1 0 1 1 0 8 0 sigapl 424 2692 0 2628 9 1 8 8 0 8 0 futexpl 64 21119 0 21116 1 0 1 1 0 8 0 knotepl 120 224 0 0 7 0 7 7 0 8 0 kqueuepl 216 626 0 618 13 10 3 5 0 8 2 pipepl 336 720 0 692 16 10 6 8 0 8 3 fdescpl 496 2657 0 2629 6 1 5 5 0 8 0 filepl 152 17738 0 17492 45 27 18 19 0 8 7 lockfpl 104 909 0 907 2 1 1 2 0 8 0 lockfspl 48 255 0 253 1 0 1 1 0 8 0 sessionpl 144 28 0 11 1 0 1 1 0 8 0 pgrppl 48 28 0 11 1 0 1 1 0 8 0 ucredpl 96 1852 0 1840 1 0 1 1 0 8 0 zombiepl 144 2630 0 2628 1 0 1 1 0 8 0 processpl 1064 2692 0 2628 5 0 5 5 0 8 0 procpl 672 7199 0 7124 12 3 9 9 0 8 1 sosppl 168 17 0 17 2 2 0 1 0 8 0 sockpl 480 5037 0 5005 89 76 13 29 0 8 7 mcl64k 65536 19 0 0 3 1 2 3 0 8 0 mcl16k 16384 11 0 0 2 0 2 2 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 9 0 0 1 0 1 1 0 8 0 mcl8k 8192 17 0 0 3 1 2 3 0 8 0 mcl4k 4096 17 0 0 3 0 3 3 0 8 0 mcl2k2 2112 4 0 0 1 0 1 1 0 8 0 mcl2k 2048 157 0 0 19 0 19 19 0 8 0 mtagpl 96 317 0 0 8 0 8 8 0 8 0 mbufpl 256 614 0 0 36 0 36 36 0 8 0 bufpl 288 7071 0 735 453 0 453 453 0 8 0 anonpl 24 708160 0 690458 159 33 126 142 0 186 4 amapchunkpl 152 77110 0 76285 47 10 37 43 0 158 1 amappl16 200 6330 0 5711 49 14 35 46 0 8 1 amappl15 192 474 0 467 1 0 1 1 0 8 0 amappl14 184 400 0 396 1 0 1 1 0 8 0 amappl13 176 283 0 280 1 0 1 1 0 8 0 amappl12 168 571 0 565 1 0 1 1 0 8 0 amappl11 160 327 0 312 1 0 1 1 0 8 0 amappl10 152 204 0 199 1 0 1 1 0 8 0 amappl9 144 781 0 775 1 0 1 1 0 8 0 amappl8 136 1065 0 997 3 0 3 3 0 8 0 amappl7 128 493 0 480 1 0 1 1 0 8 0 amappl6 120 527 0 504 2 1 1 2 0 8 0 amappl5 112 2245 0 2227 1 0 1 1 0 8 0 amappl4 104 1610 0 1584 2 1 1 2 0 8 0 amappl3 96 873 0 860 1 0 1 1 0 8 0 amappl2 88 841 0 794 3 0 3 3 0 8 0 amappl1 80 51450 0 50890 19 6 13 19 0 8 0 amappl 88 31500 0 31234 8 1 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 72 126 0 12 3 0 3 3 0 8 0 uaddrrnd 24 2874 0 2632 2 0 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2874 0 2632 2 0 2 2 0 8 0 vmmpekpl 168 24844 0 24768 4 0 4 4 0 8 0 vmmpepl 168 245103 0 242268 205 42 163 163 0 357 29 vmsppl 368 2873 0 2632 24 1 23 23 0 8 0 rwobjpl 56 66131 0 58660 108 2 106 106 0 8 0 pdppl 4096 5755 0 5478 374 91 283 285 0 8 6 pvpl 32 1278917 0 1256924 303 92 211 259 0 265 12 pmappl 248 2873 0 2632 16 0 16 16 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1234 0 151 31 0 31 31 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace igmp_leavegroup(ffff800000c37500) at igmp_leavegroup+0x80 sys/netinet/igmp.c:521 in_delmulti(ffff800000c37500) at in_delmulti+0xb7 sys/netinet/in.c:920 ip_freemoptions(ffff8000006c67a0) at ip_freemoptions+0x4d sys/netinet/ip_output.c:1764 in_pcbdetach(fffffd806689e4c8) at in_pcbdetach+0xf3 sys/netinet/in_pcb.c:584 udp_detach(fffffd8066dc9028) at udp_detach+0x3b sys/netinet/udp_usrreq.c:1249 soclose(fffffd8066dc9028,0) at soclose+0x255 sys/kern/uipc_socket.c:351 soo_close(fffffd8067d140b8,ffff800021158a90) at soo_close+0x40 fdrop(fffffd8067d140b8,ffff800021158a90) at fdrop+0xc7 sys/kern/kern_descrip.c:1279 closef(fffffd8067d140b8,ffff800021158a90) at closef+0x11c sys/kern/kern_descrip.c:1263 fdfree(ffff800021158a90) at fdfree+0xf4 sys/kern/kern_descrip.c:1195 exit1(ffff800021158a90,0,0,3) at exit1+0x37d sys/kern/kern_exit.c:202 single_thread_check_locked(ffff800021158a90,0,0) at single_thread_check_locked+0x227 sys/kern/kern_sig.c:1963 userret(ffff800021158a90) at userret+0x27a single_thread_check sys/kern/kern_sig.c:2004 [inline] userret(ffff800021158a90) at userret+0x27a sys/kern/kern_sig.c:1951 syscall(ffff80002e4455d0) at syscall+0x57e mi_syscall_return sys/sys/syscall_mi.h:129 [inline] syscall(ffff80002e4455d0) at syscall+0x57e sys/arch/amd64/amd64/trap.c:607 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffeec70, count: -15 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