kernel: protection fault trap, code=0 Stopped at in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic the kernel did not panic ddb{1}> trace in_delmulti(7fffffffffffffff) at in_delmulti+0x8d sys/netinet/in.c:894 in_purgeaddr(ffff800000a49200) at in_purgeaddr+0x156 sys/netinet/in.c:740 in_ifdetach(ffff800000adb800) at in_ifdetach+0x74 sys/netinet/in.c:949 if_detach(ffff800000adb800) at if_detach+0x140 sys/net/if.c:1151 tun_clone_destroy(ffff800000adb800) at tun_clone_destroy+0x1c7 sys/net/if_tun.c:278 spec_close(ffff800023bcd8f0) at spec_close+0x311 sys/kern/spec_vnops.c:555 VOP_CLOSE(fffffd806e1e9278,7,fffffd807f7c68a0,ffff800020ace020) at VOP_CLOSE+0xc0 sys/kern/vfs_vops.c:175 vn_closefile(fffffd8070a5dbe0,ffff800020ace020) at vn_closefile+0xd8 vn_close sys/kern/vfs_vnops.c:298 [inline] vn_closefile(fffffd8070a5dbe0,ffff800020ace020) at vn_closefile+0xd8 sys/kern/vfs_vnops.c:610 fdrop(fffffd8070a5dbe0,ffff800020ace020) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd8070a5dbe0,ffff800020ace020) at closef+0x11d sys/kern/kern_descrip.c:1257 fdfree(ffff800020ace020) at fdfree+0x101 sys/kern/kern_descrip.c:1189 exit1(ffff800020ace020,1,1) at exit1+0x32f sys/kern/kern_exit.c:196 postsig(ffff800020ace020,1) at postsig+0x4e3 sigexit sys/kern/kern_sig.c:1499 [inline] postsig(ffff800020ace020,1) at postsig+0x4e3 sys/kern/kern_sig.c:1431 userret(ffff800020ace020) at userret+0x199 sys/kern/kern_sig.c:1889 Xsyscall() at Xsyscall+0x156 end of kernel end trace frame: 0x7f7ffffcf970, count: -15 ddb{1}> show registers rdi 0x2 rsi 0 rbp 0xffff800023bcd720 rbx 0 rdx 0xffff800020ace020 rcx 0 rax 0 r8 0xffffffff81567223 rt_ifa_purge+0x153 r9 0x5 r10 0x2f r11 0x3285a9a498752f7c r12 0 r13 0x3 r14 0x7fffffffffffffff r15 0x1 rip 0xffffffff81fffe7d in_delmulti+0x8d cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800023bcd6c0 ss 0x10 in_delmulti+0x8d: movl 0xc(%r14),%r15d ddb{1}> show proc PROC (syz-executor.1) pid=352245 stat=onproc flags process=a proc=2000 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff800020a5e280,0xffff800020ace798 process=0xffff800020add880 user=0xffff800023bc8000, vmspace=0xfffffd807f008000 estcpu=36, cpticks=3, pctcpu=0.39 user=0, sys=1, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16250 77878 1 0 3 0x3000 suspend syz-executor.0 16250 187544 1 0 2 0x4081000 syz-executor.0 47844 246705 0 0 3 0x14200 bored sosplice 67104 309719 7176 0 2 0x81082 syz-fuzzer 67104 231616 7176 0 3 0x4003002 suspend syz-fuzzer 67104 6912 7176 0 2 0x4081082 syz-fuzzer 67104 451287 7176 0 2 0x4081082 syz-fuzzer 67104 284528 7176 0 2 0x4081082 syz-fuzzer 67104 483955 7176 0 2 0x4081082 syz-fuzzer 7176 250834 1 0 3 0x100082 nanosleep ksh 65467 352295 1 0 3 0 biowait sshd 64634 295139 65387 74 2 0x100092 pflogd 65387 128360 1 0 3 0x80 netio pflogd 28733 394991 45321 73 2 0x100010 syslogd 45321 52 1 0 3 0x100082 netio syslogd 24695 138681 1 77 2 0x100090 dhclient 11641 460784 1 0 3 0x80 poll dhclient 50882 506750 0 0 2 0x14200 zerothread 84671 15415 0 0 3 0x14200 aiodoned aiodoned 23910 299543 0 0 3 0x14200 syncer update 18206 425141 0 0 3 0x14200 cleaner cleaner 49949 454338 0 0 7 0x14200 reaper 53053 164366 0 0 3 0x14200 pgdaemon pagedaemon 28197 229317 0 0 3 0x14200 bored crynlk 27613 458661 0 0 3 0x14200 bored crypto 14762 435904 0 0 3 0x40014200 acpi0 acpi0 47705 59025 0 0 3 0x40014200 idle1 66979 183670 0 0 2 0x14200 softnet 92208 311454 0 0 2 0x14200 systqmp 95151 203915 0 0 3 0x14200 bored systq 11990 502514 0 0 3 0x40014200 bored softclock 3715 110432 0 0 3 0x40014200 idle0 19550 18377 0 0 3 0x14200 bored smr 1 330314 0 0 2 0x2 init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks Process 65467 (sshd) thread 0xffff800020ac1648 (352295) exclusive rrwlock inode r = 0 (0xfffffd806dcae918) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:451 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:571 #5 vget+0x1c3 sys/kern/vfs_subr.c:672 #6 ufs_ihashget+0x141 sys/ufs/ufs/ufs_ihash.c:119 #7 ffs_vget+0x74 sys/ufs/ffs/ffs_vfsops.c:1323 #8 ufs_lookup+0x14b4 sys/ufs/ufs/ufs_lookup.c:487 #9 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:91 #10 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #11 namei+0x63c sys/kern/vfs_lookup.c:249 #12 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1785 #13 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #13 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806f864c58) #0 witness_lock+0x52e sys/kern/subr_witness.c:1163 #1 rw_enter+0x447 sys/kern/kern_rwlock.c:306 #2 rrw_enter+0x4f sys/kern/kern_rwlock.c:451 #3 VOP_LOCK+0xf0 sys/kern/vfs_vops.c:615 #4 vn_lock+0x81 sys/kern/vfs_vnops.c:571 #5 vget+0x1c3 sys/kern/vfs_subr.c:672 #6 cache_lookup+0x2bb sys/kern/vfs_cache.c:224 #7 ufs_lookup+0x1bc sys/ufs/ufs/ufs_lookup.c:162 #8 VOP_LOOKUP+0x5b sys/kern/vfs_vops.c:91 #9 vfs_lookup+0x7a6 sys/kern/vfs_lookup.c:568 #10 namei+0x63c sys/kern/vfs_lookup.c:249 #11 dounlinkat+0x99 sys/kern/vfs_syscalls.c:1785 #12 syscall+0x4a4 mi_syscall sys/sys/syscall_mi.h:92 [inline] #12 syscall+0x4a4 sys/arch/amd64/amd64/trap.c:555 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9535 6494K 7460K 78643K 13241 0 0 pcb 13 8K 8K 78643K 256 0 0 rtable 102 3K 4K 78643K 746 0 0 ifaddr 120 19K 20K 78643K 304 0 0 counters 39 33K 33K 78643K 39 0 0 ioctlops 0 0K 4K 78643K 1550 0 0 iov 0 0K 24K 78643K 326 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1228 77K 77K 78643K 2056 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 15 0 0 VM map 14 7K 7K 78643K 17 0 0 sem 12 1K 1K 78643K 56 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1809 196K 290K 78643K 12766 0 0 file desc 4 9K 25K 78643K 843 0 0 sigio 0 0K 0K 78643K 90 0 0 proc 54 51K 83K 78643K 706 0 0 subproc 23 1K 2K 78643K 102 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 97 0 0 in_multi 103 4K 5K 78643K 189 0 0 ether_multi 1 0K 0K 78643K 15 0 0 mrt 0 0K 0K 78643K 5 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 66 291K 291K 78643K 66 0 0 exec 0 0K 1K 78643K 366 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 128 120K 120K 78643K 4013 0 0 UVM aobj 86 8K 8K 78643K 86 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 0K 78643K 211 0 0 NDP 13 0K 0K 78643K 64 0 0 temp 140 3555K 4195K 78643K 43501 0 0 kqueue 0 0K 0K 78643K 4 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 31 0 25 1 0 1 1 0 8 0 plcache 128 20 0 0 1 0 1 1 0 8 0 rtpcb 80 101 0 99 1 0 1 1 0 8 0 rtentry 112 119 0 78 2 0 2 2 0 8 0 unpcb 120 587 0 575 3 2 1 2 0 8 0 syncache 264 6 0 6 2 2 0 1 0 8 0 tcpqe 32 18 0 18 1 1 0 1 0 8 0 tcpcb 544 582 0 578 6 5 1 2 0 8 0 inpcb 280 2499 0 2494 5 4 1 3 0 8 0 rttmr 72 1 0 1 1 1 0 1 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 3 0 3 1 1 0 1 0 8 0 nd6 48 13 0 10 1 0 1 1 0 8 0 pkpcb 40 20 0 20 3 3 0 1 0 8 0 swfcl 56 2 0 0 1 0 1 1 0 8 0 ppxss 1128 28 0 28 7 7 0 1 0 8 0 pffrag 232 17 0 17 3 3 0 1 0 482 0 pffrnode 88 17 0 17 3 3 0 1 0 8 0 pffrent 40 717 0 717 3 3 0 1 0 8 0 pfosfp 40 846 0 423 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 144 0 59 1 0 1 1 0 8 0 pfstkey 112 144 0 59 3 0 3 3 0 8 0 pfstate 328 144 0 59 8 0 8 8 0 8 0 pfrule 1360 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 468 0 251 15 1 14 15 0 8 0 art_table 32 470 0 251 2 0 2 2 0 8 0 art_node 16 118 0 78 1 0 1 1 0 8 0 sysvmsgpl 40 29 0 15 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 54 0 44 1 0 1 1 0 8 0 shmpl 112 84 0 0 3 0 3 3 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 2708 0 1296 46 0 46 46 0 8 0 ffsino 272 2708 0 1296 95 0 95 95 0 8 0 nchpl 144 4216 0 3749 61 41 20 61 0 8 0 uvmvnodes 72 3381 0 0 62 0 62 62 0 8 0 vnodes 208 3381 0 0 178 0 178 178 0 8 0 namei 1024 13716 0 13716 2 1 1 1 0 8 1 percpumem 16 30 0 0 1 0 1 1 0 8 0 vcpupl 1984 12 0 0 2 0 2 2 0 8 0 vmpool 552 15 0 3 1 0 1 1 0 8 0 scxspl 192 13088 0 13087 15 14 1 6 0 8 0 plimitpl 152 94 0 86 1 0 1 1 0 8 0 sigapl 432 1049 0 1037 4 1 3 3 0 8 1 futexpl 56 21166 0 21166 1 0 1 1 0 8 1 knotepl 112 156 0 137 1 0 1 1 0 8 0 kqueuepl 104 184 0 182 1 0 1 1 0 8 0 pipepl 160 628 0 616 7 6 1 2 0 8 0 fdescpl 488 1050 0 1037 3 0 3 3 0 8 0 filepl 152 9537 0 9457 10 5 5 7 0 8 0 lockfpl 104 315 0 314 1 0 1 1 0 8 0 lockfspl 48 110 0 109 1 0 1 1 0 8 0 sessionpl 112 25 0 14 1 0 1 1 0 8 0 pgrppl 48 32 0 21 1 0 1 1 0 8 0 ucredpl 96 1173 0 1164 1 0 1 1 0 8 0 zombiepl 144 1040 0 1034 1 0 1 1 0 8 0 processpl 896 1067 0 1034 5 0 5 5 0 8 0 procpl 632 2925 0 2882 5 0 5 5 0 8 0 srpgc 64 10 0 10 4 4 0 1 0 8 0 sosppl 128 29 0 29 3 3 0 1 0 8 0 sockpl 384 3209 0 3190 13 9 4 7 0 8 1 mcl64k 65536 261 0 0 33 0 33 33 0 8 0 mcl16k 16384 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 7 0 0 1 0 1 1 0 8 0 mcl9k 9216 4 0 0 1 0 1 1 0 8 0 mcl8k 8192 14 0 0 2 0 2 2 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 160 0 0 19 0 19 19 0 8 0 mtagpl 80 28 0 0 1 0 1 1 0 8 0 mbufpl 256 457 0 0 25 0 25 25 0 8 0 bufpl 256 8631 0 1573 442 0 442 442 0 8 0 anonpl 16 231376 0 211543 112 13 99 104 0 124 5 amapchunkpl 152 7463 0 7311 20 10 10 12 0 158 1 amappl16 192 10652 0 9457 134 62 72 74 0 8 11 amappl14 176 453 0 447 1 0 1 1 0 8 0 amappl13 168 126 0 125 1 0 1 1 0 8 0 amappl12 160 11 0 8 2 1 1 1 0 8 0 amappl11 152 128 0 112 1 0 1 1 0 8 0 amappl10 144 206 0 200 1 0 1 1 0 8 0 amappl9 136 671 0 666 1 0 1 1 0 8 0 amappl8 128 244 0 208 2 0 2 2 0 8 0 amappl7 120 246 0 238 1 0 1 1 0 8 0 amappl6 112 128 0 117 1 0 1 1 0 8 0 amappl5 104 182 0 168 1 0 1 1 0 8 0 amappl4 96 959 0 930 2 1 1 2 0 8 0 amappl3 88 913 0 904 1 0 1 1 0 8 0 amappl2 80 7322 0 7252 3 0 3 3 0 8 0 amappl1 72 33735 0 33335 27 15 12 20 0 8 1 amappl 80 3309 0 3258 2 0 2 2 0 84 0 dma4096 4096 1 0 1 1 1 0 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 64 85 0 0 2 0 2 2 0 8 0 uaddrrnd 24 1065 0 1036 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1065 0 1036 1 0 1 1 0 8 0 vmmpekpl 168 12680 0 12643 2 0 2 2 0 8 0 vmmpepl 168 146059 0 143777 202 46 156 157 0 357 43 vmsppl 368 1049 0 1035 2 0 2 2 0 8 0 pdppl 4096 2137 0 2088 8 0 8 8 0 8 0 pvpl 32 484085 0 461984 245 16 229 239 0 265 20 pmappl 232 1064 0 1038 2 0 2 2 0 8 0 extentpl 40 46 0 29 1 0 1 1 0 8 0 phpool 112 662 0 10 19 0 19 19 0 8 0 ddb{1}> serialport: VM disconnected.