kernel: protection fault trap, code=0 Stopped at nd6_timer+0x97: movq 0x48(%rbx),%r13 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace nd6_timer(0) at nd6_timer+0x97 sys/netinet6/nd6.c:279 timeout_run(ffffffff835a0f58) at timeout_run+0x118 softclock_thread(ffff8000fffff6c8) at softclock_thread+0x163 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff800029f9ba20 rbx 0xdead4110dead4110 rdx 0 rcx 0xffff8000fffff6c8 rax 0xffffffff83499ff0 cpu_info_full_primary+0x1ff0 r8 0x2 r9 0 r10 0xbcd39cb20a4390a7 r11 0xc1abba91d2e25d2e r12 0x15216 acpi_pdirpa+0x1087 r13 0x1 r14 0x96 r15 0x4ce6751b7f33a562 rip 0xffffffff82427c77 nd6_timer+0x97 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff800029f9b9e0 ss 0x10 nd6_timer+0x97: movq 0x48(%rbx),%r13 ddb{0}> show proc PROC (softclock) tid=327529 pid=19239 tcnt=1 stat=onproc flags process=14000 proc=40000200 runpri=50, usrpri=50, slppri=0, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000fffff950,0xffff8000fffff450 process=0xffff800029f8df80 user=0xffff800029f96000, vmspace=0xffffffff836261d0 estcpu=0, cpticks=0, pctcpu=0.0, user=0, sys=2, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 54196 45860 57159 0 3 0x810008a sigsusp sh 57159 259789 9567 0 3 0x8000082 wait syz-executor 75028 106278 9567 0 3 0x8000082 wait syz-executor 68647 210500 9567 0 3 0x8000082 wait syz-executor 97963 291819 9567 0 3 0x8000082 wait syz-executor 2311 211926 9567 0 3 0x8000082 wait syz-executor 86578 7508 9567 0 3 0x8000082 wait syz-executor 35395 380846 9567 0 3 0x8000082 wait syz-executor 51129 291255 9567 0 3 0x8000082 wait syz-executor 14181 8043 0 0 3 0x14200 bored sosplice 9567 18057 35074 0 7 0x8000003 syz-executor 35074 514838 80834 0 3 0x810008a sigsusp ksh 80834 363540 4985 0 3 0x18000098 kqread sshd-session 4985 144024 81186 0 3 0x18000092 kqread sshd-session 40499 167603 1 0 3 0x18100083 ttyin getty 81186 179487 1 0 3 0x18000088 kqread sshd 51400 197011 40067 74 3 0x19100092 bpf pflogd 40067 434486 1 0 3 0x18000080 sbwait pflogd 17033 239092 83975 73 2 0x19100010 syslogd 83975 291526 1 0 3 0x18100082 sbwait syslogd 15724 315640 1 0 3 0x18100080 kqread resolvd 3674 6486 88447 77 3 0x18100092 kqread dhcpleased 31770 249703 88447 77 3 0x18100092 kqread dhcpleased 88447 297666 1 0 3 0x18000080 kqread dhcpleased 91445 95725 0 0 3 0x14200 bored smr 64454 498901 0 0 2 0x14200 zerothread 28119 414022 0 0 3 0x14200 aiodoned aiodoned 60696 180392 0 0 3 0x14200 syncer update 18222 183338 0 0 3 0x14200 cleaner cleaner 64649 304962 0 0 2 0x14200 reaper 43013 425192 0 0 3 0x14200 pgdaemon pagedaemon 3451 291594 0 0 3 0x14200 bored viomb 81737 257699 0 0 3 0x40014200 acpi0 acpi0 59374 37680 0 0 3 0x40014200 idle1 32687 251250 0 0 3 0x14200 bored softnet3 12279 463520 0 0 3 0x14200 bored softnet2 47406 53599 0 0 3 0x14200 bored softnet1 52678 220166 0 0 3 0x14200 netlock softnet0 70682 287573 0 0 3 0x14200 bored systqmp 58229 171698 0 0 3 0x14200 bored systq 15895 169936 0 0 3 0x14200 tmoslp softclockmp *19239 327529 0 0 7 0x40014200 softclock 51072 330334 0 0 3 0x40014200 idle0 1 267314 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 17033 (syslogd) thread 0xffff8000ffffd960 (239092) exclusive rrwlock inode r = 0 (0xfffffd806e46e2c0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2927 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 64649 (reaper) thread 0xffff800029fd96d0 (304962) exclusive rwlock vmmaplk r = 0 (0xfffffd806c011460) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 vm_map_lock_ln+0x143 sys/uvm/uvm_map.c:5252 #3 uvm_map_teardown+0x5e sys/uvm/uvm_map.c:2466 #4 uvmspace_free+0xcd sys/uvm/uvm_map.c:3422 #5 reaper+0x256 sys/kern/kern_exit.c:480 #6 proc_trampoline+0x10 Process 52678 (softnet0) thread 0xffff8000ffffeca8 (220166) shared rwlock softnet0 r = 0 (0xffff80000002c070) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 taskq_thread+0x12a sys/kern/kern_task.c:444 #2 proc_trampoline+0x10 Process 19239 (softclock) thread 0xffff8000fffff6c8 (327529) exclusive rwlock netlock r = 0 (0xffffffff8340e2b0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 nd6_timer+0x51 sys/netinet6/nd6.c:272 #2 timeout_run+0x118 #3 softclock_thread+0x163 sys/kern/kern_timeout.c:814 #4 proc_trampoline+0x10 shared rwlock timeout r = 0 (0xffffffff83407730) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 timeout_run+0xf1 sys/kern/kern_timeout.c:662 #2 softclock_thread+0x163 sys/kern/kern_timeout.c:814 #3 proc_trampoline+0x10 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83561c38) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 __mp_acquire_count+0x58 #2 mi_switch+0x658 sys/kern/sched_bsd.c:460 #3 sleep_finish+0x219 sys/kern/kern_synch.c:416 #4 msleep+0x13b sys/kern/kern_synch.c:249 #5 softclock_thread+0x11f sys/kern/kern_timeout.c:810 #6 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10221 10165K 10685K 166960K 12736 0 pcb 17 17K 22K 166960K 369 0 rtable 232 15K 16K 166960K 1574 0 pf 40 18K 25K 166960K 183 0 ifaddr 43 7K 8K 166960K 210 0 ifgroup 63 2K 2K 166960K 238 0 sysctl 4 1K 1K 166960K 4 0 counters 68 36K 37K 166960K 164 0 ioctlops 0 0K 4K 166960K 1660 0 iov 0 0K 16K 166960K 144 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1458 92K 92K 166960K 2863 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 27 2K 2K 166960K 30 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 11 37K 97K 166960K 1281 0 sigio 0 0K 0K 166960K 16 0 proc 70 91K 140K 166960K 1620 0 subproc 104 6K 6K 166960K 598 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 135 0 in_multi 89 6K 7K 166960K 518 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 1104 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 252 95K 111K 166960K 11701 0 UVM aobj 89 3K 3K 166960K 90 0 pinsyscall 36 72K 106K 166960K 3325 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 72 0 NDP 14 0K 1K 166960K 150 0 temp 61 6812K 6887K 166960K 52968 0 kqueue 13 20K 33K 166960K 138 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 223 0 220 3 2 1 3 0 8 0 rtentry 112 537 0 433 4 1 3 4 0 8 0 unpcb 144 1095 0 1078 17 14 3 8 0 8 2 syncache 336 5 0 5 3 3 0 1 0 8 0 tcpcb 808 334 0 328 15 13 2 8 0 8 1 arp 120 100 0 82 1 0 1 1 0 8 0 inpcb 336 1565 0 1555 29 20 9 10 0 8 7 nd6 136 141 0 119 1 0 1 1 0 8 0 pkpcb 40 5 0 5 4 4 0 1 0 8 0 kcovpl 48 46 0 38 1 0 1 1 0 8 0 ppxss 1168 9 0 9 4 4 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pffrag 232 9 0 5 1 0 1 1 0 482 0 pffrnode 88 9 0 5 1 0 1 1 0 8 0 pffrent 40 10 0 6 1 0 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfrktable 1344 7 0 7 3 3 0 1 0 8 0 pfanchor 1288 7 0 5 2 1 1 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfqueue 264 1 0 0 1 0 1 1 0 8 0 pfstitem 24 97 0 79 1 0 1 1 0 8 0 pfstkey 128 99 0 81 2 0 2 2 0 8 0 pfstate 376 97 0 79 4 0 4 4 0 8 0 pfrule 1344 28 0 22 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2075 0 1657 30 3 27 29 0 8 0 art_table 32 2076 0 1657 4 0 4 4 0 8 0 art_node 16 536 0 441 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 2 2 2 0 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 25 0 0 1 0 1 1 0 8 0 shmpl 112 87 0 1 3 0 3 3 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3030 0 1460 99 0 99 99 0 8 0 ffsino 272 3030 0 1460 106 1 105 105 0 8 0 nchpl 144 4130 0 2398 65 0 65 65 0 8 0 uvmvnodes 80 4199 0 0 86 0 86 86 0 8 0 vnodes 216 4199 0 0 234 0 234 234 0 8 0 namei 1024 19917 0 19917 6 5 1 2 0 8 1 percpumem 16 96 0 48 1 0 1 1 0 8 0 vcpupl 3904 6 0 1 1 0 1 1 0 8 0 vmpool 696 10 0 5 1 0 1 1 0 8 0 pfiaddrpl 120 2 0 2 2 2 0 1 0 8 0 kstatmem 264 124 0 96 4 2 2 3 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 31831 0 31831 12 11 1 8 1 8 1 plimitpl 152 304 0 284 1 0 1 1 0 8 0 sigapl 424 1507 0 1455 8 2 6 7 0 8 0 futexpl 64 11555 0 11555 5 4 1 1 0 8 1 knotepl 120 405 0 0 12 0 12 12 0 8 0 kqueuepl 216 494 0 485 7 6 1 5 0 8 0 pipepl 320 427 0 400 11 8 3 8 0 8 0 fdescpl 496 1488 0 1463 7 2 5 6 0 8 0 filepl 152 11415 0 11176 50 32 18 20 0 8 7 lockfpl 104 280 0 278 1 0 1 1 0 8 0 lockfspl 48 115 0 113 1 0 1 1 0 8 0 sessionpl 144 60 0 51 1 0 1 1 0 8 0 pgrppl 48 115 0 98 1 0 1 1 0 8 0 ucredpl 104 2047 0 2034 1 0 1 1 0 8 0 zombiepl 144 1463 0 1455 1 0 1 1 0 8 0 processpl 1152 1507 0 1455 5 1 4 5 0 8 0 procpl 648 2690 0 2628 7 1 6 6 0 8 0 srpgc 96 6 0 6 2 2 0 1 0 8 0 sosppl 168 6 0 6 4 4 0 1 0 8 0 sockpl 664 2892 0 2863 55 44 11 20 0 8 7 mcl64k 65536 2 0 0 1 0 1 1 0 8 0 mcl16k 16384 1 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 2 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 221 0 0 28 0 28 28 0 8 0 mtagpl 96 8 0 0 1 0 1 1 0 8 0 mbufpl 256 326 0 0 17 0 17 17 0 8 0 bufpl 280 9027 0 2603 459 0 459 459 0 8 0 anonpl 24 261719 0 253503 111 53 58 76 0 185 8 amapchunkpl 152 37520 0 36734 47 16 31 42 0 158 0 amappl16 200 4953 0 4935 49 46 3 26 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 190 0 178 1 0 1 1 0 8 0 amappl13 176 9 0 9 2 2 0 1 0 8 0 amappl12 168 2730 0 2697 4 2 2 3 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 9 0 9 1 1 0 1 0 8 0 amappl9 144 139 0 139 1 1 0 1 0 8 0 amappl8 136 47 0 45 1 0 1 1 0 8 0 amappl7 128 179 0 167 1 0 1 1 0 8 0 amappl6 120 538 0 534 1 0 1 1 0 8 0 amappl5 112 289 0 276 1 0 1 1 0 8 0 amappl4 104 423 0 402 1 0 1 1 0 8 0 amappl3 96 7143 0 7019 4 0 4 4 0 8 0 amappl2 88 1142 0 1076 2 0 2 2 0 8 0 amappl1 80 13451 0 12867 16 3 13 15 0 8 0 amappl 88 10999 0 10817 5 0 5 5 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 89 0 1 2 0 2 2 0 8 0 uaddrrnd 24 1498 0 1461 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1498 0 1461 1 0 1 1 0 8 0 vmmpekpl 168 14826 0 14778 4 1 3 3 0 8 0 vmmpepl 168 98325 0 96414 121 28 93 107 0 357 9 vmsppl 440 1497 0 1460 6 1 5 5 0 8 0 rwobjpl 56 34475 0 29226 77 3 74 74 0 8 0 pdppl 4096 3003 0 2925 145 67 78 87 0 8 0 pvpl 32 32729 0 0 266 2 264 264 0 265 0 pmappl 248 1497 0 1460 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 493 0 118 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace nd6_timer(0) at nd6_timer+0x97 sys/netinet6/nd6.c:279 timeout_run(ffffffff835a0f58) at timeout_run+0x118 softclock_thread(ffff8000fffff6c8) at softclock_thread+0x163 sys/kern/kern_timeout.c:814 end trace frame: 0x0, count: -3 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff83561a30) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff83561a30) at __mp_lock+0x192 sys/kern/kern_lock.c:144 ktrstruct(ffff800029fd9448,ffffffff8303c5af,ffff8000011a8558,8) at ktrstruct+0xe2 sys/kern/kern_ktrace.c:307 dopselect(ffff800029fd9448,35,72cfd9d07cd0,0,0,ffff80002a03c5d8,38acb7184e9825af,ffff800029fd9448) at dopselect+0xc05 sys/kern/sys_generic.c:718 sys_pselect(ffff800029fd9448,ffff80002a03c720,ffff80002a03c670) at sys_pselect+0x263 sys/kern/sys_generic.c:587 syscall(ffff80002a03c720) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a03c720) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x72cfd9d07cc0, count: -9