J u߃!$gӿ9J u߃!$gӿ9kernel: 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(6741c4d117159b71,0,0) at mrouter6_rtwalk_delete+0x2b sys/netinet6/ip6_mroute.c:502 rtable_walk_helper(fffffd8037000bc0,ffff80001796de38) at rtable_walk_helper+0x58 sys/net/rtable.c:683 art_table_walk(ffff800000075880,fffffd8036fff340,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x226 art_walk_apply sys/net/art.c:676 [inline] art_table_walk(ffff800000075880,fffffd8036fff340,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x226 sys/net/art.c:648 art_table_walk(ffff800000075880,fffffd8036fff300,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff2e0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff2c0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff2a0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff280,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff260,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff240,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff1a0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff180,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff160,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff0c0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff0a0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff040,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff020,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff000,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff060,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff080,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff0e0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff100,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff120,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff140,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff1c0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff1e0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff200,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff220,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff320,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff380,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff3e0,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff440,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036fff460,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_table_walk(ffff800000075880,fffffd8036ffff60,ffffffff82138a50,ffff80001796de38) at art_table_walk+0x2a6 sys/net/art.c:657 art_walk(ffff800000075880,ffffffff82138a50,ffff80001796de38) at art_walk+0xcf sys/net/art.c:595 rtable_walk(0,18,0,ffffffff81175a00,0) at rtable_walk+0xd4 ip6_mrouter_done(fffffd80363d4c08) at ip6_mrouter_done+0xb5 rip6_detach(fffffd80363d4c08) at rip6_detach+0x56 sys/netinet6/raw_ip6.c:757 soclose(fffffd80363d4c08,0) at soclose+0xb2 sys/kern/uipc_socket.c:303 soo_close(fffffd802f1aa540,ffff8000ffff3b40) at soo_close+0x40 fdrop(fffffd802f1aa540,ffff8000ffff3b40) at fdrop+0xc2 sys/kern/kern_descrip.c:1273 closef(fffffd802f1aa540,ffff8000ffff3b40) at closef+0x118 sys/kern/kern_descrip.c:1257 fdfree(ffff8000ffff3b40) at fdfree+0x100 sys/kern/kern_descrip.c:1189 exit1(ffff8000ffff3b40,0,1) at exit1+0x32f sys/kern/kern_exit.c:196 sys_exit(ffff8000ffff3b40,ffff80001796e2d0,ffff80001796e320) at sys_exit+0x17 sys/kern/kern_exit.c:94 syscall(ffff80001796e3a0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,1,0,1,0,7f7ffffcb3d4) at Xsyscall+0x128 end of kernel end trace frame: 0x7f7ffffcb3a0, count: -47 ddb> show registers rdi 0x6741c4d117159b71 rsi 0 rbp 0xffff80001796cb70 rbx 0xffff800000075888 rdx 0 rcx 0 rax 0x204 r8 0 r9 0x5 r10 0 r11 0xe6ad48c794a6a8aa r12 0 r13 0xfffffd8036fff340 r14 0 r15 0x6741c4d117159b71 rip 0xffffffff81175a2b mrouter6_rtwalk_delete+0x2b cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80001796cb30 ss 0x10 mrouter6_rtwalk_delete+0x2b: movl 0x5c(%r15),%r12d ddb> show proc PROC (syz-executor.1) pid=229985 stat=onproc flags process=1008 proc=2000 pri=32, usrpri=69, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffff29f8,0xffffffff8256a900 process=0xffff8000ffff70f0 user=0xffff800017969000, vmspace=0xfffffd803f014110 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 29586 85005 23338 0 2 0 syz-executor.0 29586 482349 23338 0 3 0x4000080 poll syz-executor.0 29586 400892 23338 0 2 0x4000000 syz-executor.0 84148 511251 0 0 3 0x14200 acct acct 24053 358056 0 0 3 0x14200 bored sosplice 46972 192681 54563 0 3 0x82 nanosleep syz-executor.1 23338 369462 54563 0 3 0x82 nanosleep syz-executor.0 54563 186867 10319 0 3 0x82 thrsleep syz-fuzzer 54563 458735 10319 0 3 0x4000082 nanosleep syz-fuzzer 54563 402671 10319 0 3 0x4000082 thrsleep syz-fuzzer 54563 28392 10319 0 3 0x4000082 thrsleep syz-fuzzer 54563 433045 10319 0 3 0x4000082 kqread syz-fuzzer 54563 170171 10319 0 3 0x4000082 thrsleep syz-fuzzer 54563 304773 10319 0 3 0x4000082 thrsleep syz-fuzzer 10319 507935 44415 0 3 0x10008a pause ksh 44415 126259 28447 0 3 0x92 select sshd 78421 347890 1 0 3 0x100083 ttyin getty 28447 23358 1 0 3 0x80 select sshd 30494 19391 75982 73 3 0x100090 kqread syslogd 75982 192788 1 0 3 0x100082 netio syslogd 20482 449355 1 77 3 0x100090 poll dhclient 49013 352811 1 0 3 0x80 poll dhclient 80417 27774 0 0 2 0x14200 zerothread 71503 391326 0 0 3 0x14200 aiodoned aiodoned 81759 252399 0 0 3 0x14200 syncer update 15944 459944 0 0 3 0x14200 cleaner cleaner 92369 348230 0 0 3 0x14200 reaper reaper 95368 376965 0 0 3 0x14200 pgdaemon pagedaemon 29682 125354 0 0 3 0x14200 bored crynlk 49855 177162 0 0 3 0x14200 bored crypto 59822 360151 0 0 3 0x40014200 acpi0 acpi0 24524 210980 0 0 3 0x14200 bored softnet 21733 51028 0 0 2 0x14200 systqmp 50349 355341 0 0 3 0x14200 bored systq 54678 55942 0 0 3 0x40014200 bored softclock 44050 246860 0 0 3 0x40014200 idle0 19558 157755 0 0 3 0x14200 bored smr 1 505915 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 9462 6460K 6967K 78643K 11004 0 0 pcb 15 8K 8K 78643K 59 0 0 rtable 109 3K 4K 78643K 214 0 0 ifaddr 39 10K 11K 78643K 47 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 27 0 0 iov 1 12K 16K 78643K 25 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1215 76K 76K 78643K 1379 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 6 0 0 VM map 2 0K 0K 78643K 2 0 0 sem 12 0K 0K 78643K 20 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1794 195K 288K 78643K 12723 0 0 file desc 6 17K 25K 78643K 223 0 0 sigio 0 0K 0K 78643K 6 0 0 proc 48 38K 63K 78643K 356 0 0 subproc 32 2K 2K 78643K 34 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 25 0 0 in_multi 33 2K 2K 78643K 45 0 0 ether_multi 2 0K 0K 78643K 3 0 0 mrt 2 0K 0K 78643K 3 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 200 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 88 20K 21K 78643K 1326 0 0 UVM aobj 8 2K 2K 78643K 8 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 20 0 0 NDP 6 0K 0K 78643K 12 0 0 temp 98 3526K 3592K 78643K 3768 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 rtpcb 80 23 0 21 1 0 1 1 0 8 0 rtentry 112 46 0 2 2 0 2 2 0 8 0 unpcb 120 91 0 83 1 0 1 1 0 8 0 syncache 264 4 0 4 1 1 0 1 0 8 0 tcpqe 32 5016 0 5016 1 1 0 1 0 8 0 tcpcb 544 50 0 46 1 0 1 1 0 8 0 inpcb 280 172 0 163 1 0 1 1 0 8 0 rttmr 72 1 0 1 1 0 1 1 0 8 1 nd6 48 4 0 0 1 0 1 1 0 8 0 pkpcb 40 2 0 2 1 0 1 1 0 8 1 ppxss 1128 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 213 0 0 14 0 14 14 0 8 0 art_table 32 214 0 0 2 0 2 2 0 8 0 art_node 16 45 0 4 1 0 1 1 0 8 0 semapl 112 18 0 8 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 1722 0 323 46 0 46 46 0 8 0 ffsino 240 1722 0 323 83 0 83 83 0 8 0 nchpl 144 2240 0 640 60 0 60 60 0 8 0 uvmvnodes 72 1870 0 0 34 0 34 34 0 8 0 vnodes 208 1870 0 0 99 0 99 99 0 8 0 namei 1024 5779 0 5779 2 1 1 1 0 8 1 scsiplug 64 4 0 4 2 1 1 1 0 8 1 scxspl 192 6472 0 6472 10 8 2 7 0 8 2 plimitpl 152 30 0 23 1 0 1 1 0 8 0 sigapl 432 394 0 380 2 0 2 2 0 8 0 futexpl 56 3350 0 3350 1 0 1 1 0 8 1 knotepl 112 73 0 54 1 0 1 1 0 8 0 kqueuepl 104 42 0 40 1 0 1 1 0 8 0 pipepl 112 200 0 179 1 0 1 1 0 8 0 fdescpl 424 395 0 380 2 0 2 2 0 8 0 filepl 120 2186 0 2083 4 0 4 4 0 8 0 lockfpl 104 113 0 111 1 0 1 1 0 8 0 lockfspl 48 38 0 36 1 0 1 1 0 8 0 sessionpl 112 17 0 7 1 0 1 1 0 8 0 pgrppl 48 17 0 7 1 0 1 1 0 8 0 ucredpl 96 325 0 318 1 0 1 1 0 8 0 zombiepl 144 381 0 380 2 1 1 1 0 8 0 processpl 864 411 0 380 4 0 4 4 0 8 0 procpl 632 664 0 625 4 0 4 4 0 8 0 sosppl 128 9 0 9 1 0 1 1 0 8 1 sockpl 384 290 0 271 3 0 3 3 0 8 1 mcl64k 65536 6 0 6 1 0 1 1 0 8 1 mcl12k 12288 5 0 5 1 0 1 1 0 8 1 mcl8k 8192 3 0 3 1 0 1 1 0 8 1 mcl4k 4096 15 0 15 2 1 1 1 0 8 1 mcl2k2 2112 4 0 4 1 1 0 1 0 8 0 mcl2k 2048 52766 0 52724 19 13 6 16 0 8 0 mtagpl 80 10 0 2 2 1 1 1 0 8 0 mbufpl 256 86474 0 86368 13 5 8 10 0 8 0 bufpl 256 6804 0 1884 308 0 308 308 0 8 0 anonpl 16 44197 0 31565 53 2 51 51 0 62 0 amapchunkpl 152 1604 0 1499 8 2 6 6 0 158 0 amappl16 192 1639 0 942 36 0 36 36 0 8 1 amappl14 176 222 0 214 1 0 1 1 0 8 0 amappl12 160 8 0 8 1 1 0 1 0 8 0 amappl11 152 44 0 33 1 0 1 1 0 8 0 amappl10 144 12 0 9 1 0 1 1 0 8 0 amappl9 136 564 0 556 1 0 1 1 0 8 0 amappl8 128 157 0 131 1 0 1 1 0 8 0 amappl7 120 34 0 31 1 0 1 1 0 8 0 amappl6 112 66 0 58 1 0 1 1 0 8 0 amappl5 104 167 0 157 1 0 1 1 0 8 0 amappl4 96 518 0 491 1 0 1 1 0 8 0 amappl3 88 393 0 383 1 0 1 1 0 8 0 amappl2 80 2374 0 2300 3 1 2 3 0 8 0 amappl1 72 16578 0 16134 28 19 9 20 0 8 0 amappl 80 877 0 840 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 395 0 380 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 395 0 380 1 0 1 1 0 8 0 vmmpekpl 168 6758 0 6736 2 0 2 2 0 8 0 vmmpepl 168 53094 0 51224 120 23 97 102 0 357 15 vmsppl 272 394 0 380 2 1 1 2 0 8 0 pdppl 4096 796 0 760 6 1 5 6 0 8 0 pvpl 32 154965 0 139291 142 8 134 134 0 265 7 pmappl 200 394 0 380 1 0 1 1 0 8 0 extentpl 40 38 0 22 1 0 1 1 0 8 0 phpool 112 458 0 24 13 0 13 13 0 8 0