^W;g{$˔!y L'.4SN0!ܧ':E)2i@X+ռl3&!1qPJLV:so=KeB< S !Qc)3lǔ`!.1͋3$R/iEV5uV2~?=Qq2Ez&sr>nQkCޛO@+PkM?!_Dvo'C` |;`\!YV\P`\!YV\Pkernel: 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(d10e2404cf1237cb,0,0) at mrouter6_rtwalk_delete+0x2b sys/netinet6/ip6_mroute.c:500 rtable_walk_helper(fffffd8036daeb10,ffff800014976668) at rtable_walk_helper+0x58 sys/net/rtable.c:682 art_table_walk(ffff800000075780,fffffd8036dad440,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x226 art_walk_apply sys/net/art.c:676 [inline] art_table_walk(ffff800000075780,fffffd8036dad440,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x226 sys/net/art.c:648 art_table_walk(ffff800000075780,fffffd8036dad400,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad3c0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad3a0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad380,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad360,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad340,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad320,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad2e0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad2c0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad2a0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad280,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad220,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad1a0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad0c0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad060,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad020,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad000,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad040,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad080,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad0a0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad0e0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad100,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad120,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad140,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad160,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad180,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad1c0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad1e0,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad200,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dad240,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075780,fffffd8036dadf60,ffffffff81b7a1d0,ffff800014976668) at art_table_walk+0x2a6 sys/net/art.c:657 art_walk(ffff800000075780,ffffffff81b7a1d0,ffff800014976668) at art_walk+0xcf sys/net/art.c:595 rtable_walk(0,18,ffffffff81b93150,0) at rtable_walk+0xc7 sys/net/rtable.c:706 ip6_mrouter_done(fffffd803a7b6a80) at ip6_mrouter_done+0xb8 sys/netinet6/ip6_mroute.c:529 rip6_detach(fffffd803a7b6a80) at rip6_detach+0x56 sys/netinet6/raw_ip6.c:757 soclose(fffffd803a7b6a80,0) at soclose+0xb2 sys/kern/uipc_socket.c:292 soo_close(fffffd802ff00870,ffff80001491feb8) at soo_close+0x40 fdrop(fffffd802ff00870,ffff80001491feb8) at fdrop+0xc9 sys/kern/kern_descrip.c:1260 closef(fffffd802ff00870,ffff80001491feb8) at closef+0x118 sys/kern/kern_descrip.c:1244 fdfree(ffff80001491feb8) at fdfree+0xf7 sys/kern/kern_descrip.c:1176 exit1(ffff80001491feb8,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff80001491feb8,ffff800014976ae0,ffff800014976b50) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff800014976bb0) at syscall+0x508 Xsyscall(6,1,0,1,0,7f7ffffde344) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffde310, count: -47 ddb> show registers rdi 0xd10e2404cf1237cb rsi 0 rbp 0xffff8000149753a0 rbx 0xffff800000075788 rdx 0 rcx 0 rax 0x204 r8 0 r9 0x5 r10 0 r11 0x27f7e19a679ce93d r12 0 r13 0xfffffd8036dad440 r14 0 r15 0xd10e2404cf1237cb rip 0xffffffff81b9317b mrouter6_rtwalk_delete+0x2b cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800014975360 ss 0x10 mrouter6_rtwalk_delete+0x2b: movl 0x5c(%r15),%r12d ddb> show proc PROC (syz-executor.0) pid=76328 stat=onproc flags process=1008 proc=2000 pri=50, usrpri=75, nice=20 forw=0xffffffffffffffff, list=0xffff80001491f018,0xffff800014920888 process=0xffff8000ffffaa00 user=0xffff800014971000, vmspace=0xfffffd803f014990 estcpu=36, cpticks=4, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 19572 499136 79064 0 2 0 syz-executor.1 19572 461781 79064 0 3 0x4000080 fsleep syz-executor.1 60133 229751 1 0 3 0x100083 ttyin getty 95810 34679 0 0 3 0x14200 bored sosplice 18399 501202 99456 0 3 0x82 nanosleep syz-executor.0 79064 209733 99456 0 3 0x82 nanosleep syz-executor.1 99456 54607 39477 0 3 0x82 thrsleep syz-fuzzer 99456 137999 39477 0 3 0x4000082 thrsleep syz-fuzzer 99456 231389 39477 0 3 0x4000082 thrsleep syz-fuzzer 99456 213354 39477 0 3 0x4000082 thrsleep syz-fuzzer 99456 461817 39477 0 3 0x4000082 thrsleep syz-fuzzer 99456 165881 39477 0 3 0x4000082 kqread syz-fuzzer 99456 85180 39477 0 3 0x4000082 thrsleep syz-fuzzer 39477 219415 59316 0 3 0x10008a pause ksh 59316 60673 49187 0 3 0x92 select sshd 49187 479173 1 0 3 0x80 select sshd 38311 159693 6846 73 3 0x100090 kqread syslogd 6846 96064 1 0 3 0x100082 netio syslogd 15922 378468 1 77 3 0x100090 poll dhclient 54995 170066 1 0 3 0x80 poll dhclient 87354 109493 0 0 2 0x14200 zerothread 44676 222041 0 0 3 0x14200 aiodoned aiodoned 12904 236221 0 0 3 0x14200 syncer update 59128 332905 0 0 3 0x14200 cleaner cleaner 76524 510388 0 0 3 0x14200 reaper reaper 87870 260874 0 0 3 0x14200 pgdaemon pagedaemon 42687 266840 0 0 3 0x14200 bored crynlk 21424 154589 0 0 3 0x14200 bored crypto 28765 215139 0 0 3 0x40014200 acpi0 acpi0 22581 202634 0 0 3 0x14200 bored softnet 57555 433949 0 0 2 0x14200 systqmp 88743 270372 0 0 3 0x14200 bored systq 83010 194142 0 0 3 0x40014200 bored softclock 5592 40378 0 0 3 0x40014200 idle0 1057 409834 0 0 3 0x14200 bored smr 1 473880 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 9515 6358K 7126K 78643K 19452 0 0 pcb 27 9K 11K 78643K 1495 0 0 rtable 125 4K 5K 78643K 752 0 0 ifaddr 58 14K 15K 78643K 323 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 202 0 0 iov 0 0K 32K 78643K 424 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1200 75K 76K 78643K 4390 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 43 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 1K 1K 78643K 314 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 6 17K 25K 78643K 3408 0 0 sigio 0 0K 0K 78643K 46 0 0 proc 43 30K 46K 78643K 677 0 0 subproc 32 2K 2K 78643K 38 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 321 0 0 in_multi 33 2K 2K 78643K 135 0 0 ether_multi 2 0K 0K 78643K 14 0 0 mrt 2 0K 0K 78643K 10 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 114 503K 503K 78643K 114 0 0 exec 0 0K 1K 78643K 523 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 86 20K 29K 78643K 8910 0 0 UVM aobj 130 4K 4K 78643K 142 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 104 0 0 NDP 12 0K 0K 78643K 84 0 0 temp 171 2719K 2797K 78643K 13324 0 0 kqueue 0 0K 0K 78643K 23 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 6 0 0 1 0 1 1 0 8 0 inpcbpl 280 1246 0 1235 1 0 1 1 0 8 0 rtentry 112 58 0 10 2 0 2 2 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 43 0 43 2 2 0 1 0 8 0 tcpcb 544 432 0 428 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 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 6 0 0 1 0 1 1 0 8 0 ppxss 1128 60 0 60 10 9 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 189 0 0 12 0 12 12 0 8 0 art_table 32 190 0 0 2 0 2 2 0 8 0 art_node 16 49 0 8 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 312 0 302 1 0 1 1 0 8 0 shmpl 112 140 0 12 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 6972 0 5535 48 1 47 47 0 8 0 ffsino 240 6972 0 5535 85 0 85 85 0 8 0 nchpl 144 11888 0 10264 61 0 61 61 0 8 0 uvmvnodes 72 5926 0 0 108 0 108 108 0 8 0 vnodes 200 5926 0 0 312 0 312 312 0 8 0 namei 1024 37786 0 37786 2 1 1 1 0 8 1 scsiplug 64 10 0 10 7 7 0 1 0 8 0 scxspl 192 37524 0 37524 22 19 3 5 0 8 3 plimitpl 152 126 0 119 1 0 1 1 0 8 0 sigapl 432 3583 0 3569 2 0 2 2 0 8 0 futexpl 56 54177 0 54176 1 0 1 1 0 8 0 knotepl 112 607 0 588 1 0 1 1 0 8 0 kqueuepl 104 732 0 730 1 0 1 1 0 8 0 pipepl 112 2110 0 2091 9 7 2 2 0 8 1 fdescpl 424 3584 0 3569 2 0 2 2 0 8 0 filepl 120 21408 0 21304 5 1 4 5 0 8 0 lockfpl 104 1208 0 1208 2 1 1 1 0 8 1 lockfspl 48 427 0 427 2 1 1 1 0 8 1 sessionpl 112 21 0 11 1 0 1 1 0 8 0 pgrppl 48 45 0 35 1 0 1 1 0 8 0 ucredpl 96 4957 0 4950 1 0 1 1 0 8 0 zombiepl 144 3570 0 3569 2 1 1 1 0 8 0 processpl 848 3599 0 3569 4 0 4 4 0 8 0 procpl 624 8048 0 8011 4 0 4 4 0 8 0 sosppl 128 40 0 40 10 10 0 1 0 8 0 sockpl 384 2548 0 2526 5 2 3 4 0 8 0 mcl64k 65536 569 0 569 69 65 4 33 0 8 4 mcl16k 16384 7 0 7 6 6 0 1 0 8 0 mcl12k 12288 60 0 60 10 9 1 1 0 8 1 mcl9k 9216 59 0 59 11 10 1 1 0 8 1 mcl8k 8192 51 0 51 12 11 1 1 0 8 1 mcl4k 4096 166 0 166 3 2 1 1 0 8 1 mcl2k2 2112 24 0 24 13 13 0 1 0 8 0 mcl2k 2048 56517 0 56464 21 13 8 13 0 8 0 mtagpl 80 6 0 6 3 3 0 1 0 8 0 mbufpl 256 104977 0 104887 45 38 7 21 0 8 1 bufpl 256 14691 0 9897 300 0 300 300 0 8 0 anonpl 16 291966 0 281282 123 74 49 61 0 62 5 amapchunkpl 152 14604 0 14492 26 19 7 10 0 158 0 amappl16 192 17705 0 17125 94 64 30 42 0 8 0 amappl14 176 43 0 40 2 1 1 1 0 8 0 amappl13 168 1 0 1 1 1 0 1 0 8 0 amappl12 160 1671 0 1668 1 0 1 1 0 8 0 amappl11 152 53 0 38 1 0 1 1 0 8 0 amappl10 144 73 0 71 2 1 1 1 0 8 0 amappl9 136 2264 0 2259 1 0 1 1 0 8 0 amappl8 128 1855 0 1837 1 0 1 1 0 8 0 amappl7 120 30 0 27 1 0 1 1 0 8 0 amappl6 112 58 0 51 1 0 1 1 0 8 0 amappl5 104 1819 0 1806 1 0 1 1 0 8 0 amappl4 96 3746 0 3721 1 0 1 1 0 8 0 amappl3 88 340 0 330 1 0 1 1 0 8 0 amappl2 80 28108 0 28035 4 2 2 3 0 8 0 amappl1 72 69160 0 68723 26 17 9 19 0 8 0 amappl 80 8334 0 8294 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 64 141 0 12 3 0 3 3 0 8 0 uaddrrnd 24 3584 0 3569 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3584 0 3569 1 0 1 1 0 8 0 vmmpekpl 168 24898 0 24872 2 0 2 2 0 8 0 vmmpepl 168 416451 0 414724 160 83 77 104 0 357 1 vmsppl 272 3583 0 3569 2 1 1 2 0 8 0 pdppl 4096 7174 0 7138 6 1 5 6 0 8 0 pvpl 32 815690 0 801909 260 131 129 151 0 265 17 pmappl 200 3583 0 3569 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 574 0 140 15 1 14 14 0 8 0