login: llkernel: protection fault trap, code=0 Stopped at mrouter6_rtwalk_delete+0x2b: movl 0x5c(%r15),%r12d ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace mrouter6_rtwalk_delete(974a10663584b79c,0,0) at mrouter6_rtwalk_delete+0x2b sys/netinet6/ip6_mroute.c:502 rtable_walk_helper(fffffd8036d67b40,ffff80001791ee68) at rtable_walk_helper+0x58 sys/net/rtable.c:683 art_table_walk(ffff800000075880,fffffd8036d66440,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x226 art_walk_apply sys/net/art.c:676 [inline] art_table_walk(ffff800000075880,fffffd8036d66440,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x226 sys/net/art.c:648 art_table_walk(ffff800000075880,fffffd8036d663e0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66340,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66320,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d662c0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d662a0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66260,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66240,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66220,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d661c0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d661a0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66140,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d660e0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66080,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66060,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66040,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66020,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66000,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d660a0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d660c0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66100,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66120,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66160,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66180,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d661e0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66200,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66280,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d662e0,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66300,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66360,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66380,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036d66f60,ffffffff82138a50,ffff80001791ee68) at art_table_walk+0x2a6 sys/net/art.c:657 art_walk(ffff800000075880,ffffffff82138a50,ffff80001791ee68) at art_walk+0xcf sys/net/art.c:595 rtable_walk(0,18,0,ffffffff81175a00,0) at rtable_walk+0xd4 ip6_mrouter_done(fffffd803b073900) at ip6_mrouter_done+0xb5 rip6_detach(fffffd803b073900) at rip6_detach+0x56 sys/netinet6/raw_ip6.c:757 soclose(fffffd803b073900,0) at soclose+0xb2 sys/kern/uipc_socket.c:303 soo_close(fffffd802b365010,ffff8000ffff2018) at soo_close+0x40 fdrop(fffffd802b365010,ffff8000ffff2018) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd802b365010,ffff8000ffff2018) at closef+0x118 sys/kern/kern_descrip.c:1257 fdfree(ffff8000ffff2018) at fdfree+0x100 sys/kern/kern_descrip.c:1189 exit1(ffff8000ffff2018,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff8000ffff2018,ffff80001791f300,ffff80001791f350) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff80001791f3d0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,1,0,1,0,7f7fffff3b54) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7fffff3b20, count: -47 ddb> show registers rdi 0x974a10663584b79c rsi 0 rbp 0xffff80001791dba0 rbx 0xffff800000075888 rdx 0 rcx 0 rax 0x204 r8 0 r9 0x5 r10 0 r11 0xdccffba45720bbbb r12 0 r13 0xfffffd8036d66440 r14 0 r15 0x974a10663584b79c rip 0xffffffff81175a2b mrouter6_rtwalk_delete+0x2b cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001791db60 ss 0x10 mrouter6_rtwalk_delete+0x2b: movl 0x5c(%r15),%r12d ddb> show proc PROC (syz-executor.1) pid=501404 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff3650,0xffff8000ffff2c80 process=0xffff8000ffff6a30 user=0xffff80001791a000, vmspace=0xfffffd803f014660 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 49250 218213 25350 0 3 0x80 nanosleep syz-executor.0 49250 237902 25350 0 3 0x4000080 netcon2 syz-executor.0 49250 174146 25350 0 3 0x4000080 fsleep syz-executor.0 25350 170747 62325 0 3 0x82 nanosleep syz-executor.0 76902 425644 1 0 3 0x100083 ttyin getty 53513 132708 62325 0 3 0x82 nanosleep syz-executor.1 3072 441852 0 0 3 0x14200 bored sosplice 62325 459033 78977 0 3 0x82 thrsleep syz-fuzzer 62325 78108 78977 0 3 0x4000082 thrsleep syz-fuzzer 62325 128535 78977 0 3 0x4000082 thrsleep syz-fuzzer 62325 80581 78977 0 3 0x4000082 thrsleep syz-fuzzer 62325 459561 78977 0 3 0x4000082 kqread syz-fuzzer 62325 229959 78977 0 3 0x4000082 thrsleep syz-fuzzer 62325 114613 78977 0 3 0x4000082 thrsleep syz-fuzzer 78977 362563 3182 0 3 0x10008a pause ksh 3182 156994 29449 0 3 0x92 select sshd 29449 424248 1 0 3 0x80 select sshd 91983 296606 77781 73 3 0x100090 kqread syslogd 77781 229777 1 0 3 0x100082 netio syslogd 6174 260009 1 77 3 0x100090 poll dhclient 7139 311705 1 0 3 0x80 poll dhclient 16139 282356 0 0 2 0x14200 zerothread 14527 35165 0 0 3 0x14200 aiodoned aiodoned 52666 39559 0 0 3 0x14200 syncer update 32475 30809 0 0 3 0x14200 cleaner cleaner 74138 216940 0 0 3 0x14200 reaper reaper 62813 76573 0 0 3 0x14200 pgdaemon pagedaemon 10663 31222 0 0 3 0x14200 bored crynlk 43352 161239 0 0 3 0x14200 bored crypto 88672 82851 0 0 3 0x40014200 acpi0 acpi0 31800 62564 0 0 3 0x14200 bored softnet 54812 338890 0 0 2 0x14200 systqmp 3210 381672 0 0 3 0x14200 bored systq 84397 320628 0 0 3 0x40014200 bored softclock 56342 361808 0 0 3 0x40014200 idle0 18599 361645 0 0 3 0x14200 bored smr 1 446298 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9534 6490K 7364K 78643K 17190 0 0 pcb 15 8K 8K 78643K 373 0 0 rtable 117 4K 4K 78643K 964 0 0 ifaddr 62 15K 16K 78643K 349 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 160 0 0 iov 0 0K 24K 78643K 266 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1212 76K 77K 78643K 3556 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 9K 78643K 44 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 1K 1K 78643K 207 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1794 195K 288K 78643K 12723 0 0 file desc 6 17K 25K 78643K 2563 0 0 sigio 0 0K 0K 78643K 48 0 0 proc 49 38K 63K 78643K 864 0 0 subproc 32 2K 2K 78643K 153 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 235 0 0 in_multi 33 2K 2K 78643K 201 0 0 ether_multi 2 0K 0K 78643K 11 0 0 mrt 3 0K 0K 78643K 9 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 96 424K 424K 78643K 96 0 0 exec 0 0K 1K 78643K 511 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 99 21K 30K 78643K 6847 0 0 UVM aobj 111 4K 4K 78643K 121 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 1K 78643K 332 0 0 NDP 13 0K 0K 78643K 102 0 0 temp 177 3535K 4175K 78643K 34761 0 0 kqueue 0 0K 0K 78643K 39 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 21 0 15 1 0 1 1 0 8 0 rtpcb 80 120 0 118 1 0 1 1 0 8 0 rtentry 112 122 0 76 2 0 2 2 0 8 0 unpcb 120 951 0 943 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 5372 0 5372 1 1 0 1 0 8 0 tcpcb 544 487 0 482 1 0 1 1 0 8 0 ipq 40 2 0 2 1 1 0 1 0 8 0 ipqe 40 4 0 4 1 1 0 1 0 8 0 inpcb 280 1500 0 1490 2 0 2 2 0 8 1 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 21 0 16 1 0 1 1 0 8 0 pkpcb 40 7 0 7 2 2 0 1 0 8 0 ppxss 1128 58 0 58 7 6 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 555 0 334 15 1 14 15 0 8 0 art_table 32 556 0 334 2 0 2 2 0 8 0 art_node 16 120 0 78 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 14 2 1 1 1 0 8 0 semapl 112 203 0 193 1 0 1 1 0 8 0 shmpl 112 119 0 10 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 5397 0 4011 46 0 46 46 0 8 0 ffsino 240 5397 0 4011 83 0 83 83 0 8 0 nchpl 144 9088 0 7491 60 0 60 60 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 208 5926 0 0 312 0 312 312 0 8 0 namei 1024 29686 0 29686 2 1 1 1 0 8 1 scsiplug 64 3 0 3 3 3 0 1 0 8 0 scxspl 192 27470 0 27470 15 14 1 7 0 8 1 plimitpl 152 228 0 221 1 0 1 1 0 8 0 sigapl 432 2715 0 2701 2 0 2 2 0 8 0 futexpl 56 42980 0 42979 1 0 1 1 0 8 0 knotepl 112 687 0 668 1 0 1 1 0 8 0 kqueuepl 104 637 0 635 1 0 1 1 0 8 0 pipepl 112 1578 0 1559 7 5 2 2 0 8 1 fdescpl 424 2716 0 2701 2 0 2 2 0 8 0 filepl 120 16602 0 16504 10 6 4 6 0 8 0 lockfpl 104 929 0 928 1 0 1 1 0 8 0 lockfspl 48 306 0 305 1 0 1 1 0 8 0 sessionpl 112 26 0 16 1 0 1 1 0 8 0 pgrppl 48 44 0 34 1 0 1 1 0 8 0 ucredpl 96 3102 0 3095 1 0 1 1 0 8 0 zombiepl 144 2703 0 2702 2 1 1 1 0 8 0 processpl 864 2732 0 2702 4 0 4 4 0 8 0 procpl 632 5807 0 5769 4 0 4 4 0 8 0 sosppl 128 17 0 16 7 6 1 1 0 8 0 sockpl 384 2597 0 2577 8 5 3 4 0 8 0 mcl64k 65536 310 0 310 35 34 1 29 0 8 1 mcl16k 16384 8 0 8 5 5 0 1 0 8 0 mcl12k 12288 44 0 44 7 6 1 1 0 8 1 mcl9k 9216 37 0 37 6 6 0 1 0 8 0 mcl8k 8192 47 0 47 7 6 1 1 0 8 1 mcl4k 4096 130 0 130 4 3 1 1 0 8 1 mcl2k2 2112 13 0 13 7 7 0 1 0 8 0 mcl2k 2048 56450 0 56405 19 12 7 13 0 8 1 mtagpl 80 92 0 67 2 1 1 1 0 8 0 mbufpl 256 105264 0 105143 28 18 10 21 0 8 0 bufpl 256 12286 0 7128 323 0 323 323 0 8 0 anonpl 16 247752 0 236562 116 54 62 68 0 62 9 amapchunkpl 152 11528 0 11423 22 14 8 9 0 158 2 amappl16 192 13704 0 12992 110 66 44 48 0 8 8 amappl15 184 9 0 9 1 1 0 1 0 8 0 amappl14 176 983 0 975 1 0 1 1 0 8 0 amappl13 168 8 0 8 1 1 0 1 0 8 0 amappl12 160 573 0 571 1 0 1 1 0 8 0 amappl11 152 118 0 106 1 0 1 1 0 8 0 amappl10 144 868 0 866 2 1 1 1 0 8 0 amappl9 136 719 0 713 1 0 1 1 0 8 0 amappl8 128 268 0 241 1 0 1 1 0 8 0 amappl7 120 909 0 904 1 0 1 1 0 8 0 amappl6 112 119 0 110 1 0 1 1 0 8 0 amappl5 104 762 0 751 1 0 1 1 0 8 0 amappl4 96 1735 0 1707 1 0 1 1 0 8 0 amappl3 88 2244 0 2234 1 0 1 1 0 8 0 amappl2 80 20448 0 20374 3 1 2 3 0 8 0 amappl1 72 56399 0 55976 26 16 10 20 0 8 0 amappl 80 6138 0 6101 1 0 1 1 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 dma64 64 259 0 259 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 120 0 10 2 0 2 2 0 8 0 uaddrrnd 24 2716 0 2701 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2716 0 2701 1 0 1 1 0 8 0 vmmpekpl 168 20099 0 20072 2 0 2 2 0 8 0 vmmpepl 168 321430 0 319575 193 91 102 102 0 357 20 vmsppl 272 2715 0 2701 3 2 1 2 0 8 0 pdppl 4096 5438 0 5402 6 1 5 6 0 8 0 pvpl 32 667288 0 653035 239 85 154 169 0 265 27 pmappl 200 2715 0 2701 1 0 1 1 0 8 0 extentpl 40 38 0 22 1 0 1 1 0 8 0 phpool 112 537 0 85 14 0 14 14 0 8 0