kernel: protection fault trap, code=0 Stopped at __x86_indirect_thunk_r11+0x14: ret ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 softclock_thread(ffff80002a40d440) at softclock_thread+0xe3 sys/kern/kern_timeout.c:811 end trace frame: 0x0, count: -2 ddb> show registers rdi 0xdeafbeaddeafbead rsi 0 rbp 0xffff80002a419410 rbx 0 rdx 0 rcx 0xffffffff833feff0 cpu_info_full_primary+0x1ff0 rax 0x9 r8 0xffff80002a419048 r9 0x1800 __ALIGN_SIZE+0x800 r10 0x533119f9af2ef8a6 r11 0xdeafbeaddeafbead r12 0xdeafbeaddeafbead r13 0xffffffff833feff0 cpu_info_full_primary+0x1ff0 r14 0xffff8000ffffead0 r15 0xdeafbeaddeafbead rip 0xffffffff81307304 __x86_indirect_thunk_r11+0x14 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a4193d0 ss 0x10 __x86_indirect_thunk_r11+0x14: ret ddb> show proc PROC (softclock) tid=513045 pid=33330 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=0xffff80002a40d6c8,0xffff80002a40ccb8 process=0xffff8000ffffead0 user=0xffff80002a414000, vmspace=0xffffffff835e1240 estcpu=0, cpticks=0, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 39975 425854 10034 0 2 0x81480 syz-executor 39975 130397 10034 0 3 0x4003000 suspend syz-executor 37217 131692 1 0 3 0x100083 ttyin getty 11946 90823 49784 0 3 0x82 wait syz-executor 93326 421997 49784 0 3 0x82 wait syz-executor 10034 505642 49784 0 2 0x2 syz-executor 63412 129571 49784 0 3 0x82 wait syz-executor 81939 14418 49784 0 3 0x82 wait syz-executor 18554 298800 49784 0 3 0x82 wait syz-executor 2447 67946 49784 0 3 0x82 wait syz-executor 25498 34836 0 0 3 0x14200 acct acct 89888 102684 0 0 3 0x14200 bored sosplice 49784 337723 75651 0 3 0x82 wait syz-executor 75651 268580 72531 0 3 0x10008a sigsusp ksh 72531 278015 96576 0 3 0x98 kqread sshd-session 96576 373941 6816 0 3 0x92 kqread sshd-session 6816 448530 1 0 3 0x88 kqread sshd 70174 329606 31280 73 2 0x1100010 syslogd 31280 128896 1 0 3 0x100082 sbwait syslogd 1527 181513 1 0 3 0x100080 kqread resolvd 22867 122451 52725 77 3 0x100092 kqread dhcpleased 90976 462631 52725 77 3 0x100092 kqread dhcpleased 52725 321897 1 0 3 0x80 kqread dhcpleased 19054 454927 0 0 3 0x14200 bored smr 94615 43949 0 0 2 0x14200 zerothread 82687 10703 0 0 3 0x14200 aiodoned aiodoned 53973 217990 0 0 2 0x14600 update 59117 86817 0 0 3 0x14200 cleaner cleaner 49751 204460 0 0 2 0x14200 reaper 55995 271112 0 0 3 0x14200 pgdaemon pagedaemon 81008 480068 0 0 3 0x14200 bored viomb 8856 414380 0 0 3 0x40014200 acpi0 acpi0 33828 510250 0 0 3 0x14200 bored softnet3 87396 484266 0 0 3 0x14200 bored softnet2 21794 153687 0 0 3 0x14200 bored softnet1 24382 373443 0 0 2 0x14200 softnet0 57312 102195 0 0 3 0x14200 bored systqmp 78275 102060 0 0 3 0x14200 bored systq *33330 513045 0 0 7 0x40014200 softclock 53781 155154 0 0 3 0x40014200 idle0 1 205582 0 0 3 0x80082 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 devbuf 10176 11056K 11435K 166960K 12802 0 pcb 17 13K 14K 166960K 310 0 rtable 179 7K 9K 166960K 3985 0 pf 29 13K 21K 166960K 312 0 ifaddr 34 7K 9K 166960K 538 0 ifgroup 42 1K 2K 166960K 535 0 sysctl 4 1K 1K 166960K 7 0 counters 28 17K 17K 166960K 158 0 ioctlops 0 0K 4K 166960K 320 0 iov 0 0K 22K 166960K 112 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1520 95K 96K 166960K 3837 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 68K 72K 166960K 25 0 VM map 2 1K 1K 166960K 2 0 sem 22 20K 20K 166960K 50 0 dirhash 15 2K 3K 166960K 45 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 10 33K 97K 166960K 3470 0 sigio 0 0K 0K 166960K 36 0 proc 60 59K 124K 166960K 3811 0 subproc 91 5K 6K 166960K 1562 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 234 0 in_multi 77 5K 7K 166960K 1429 0 ether_multi 1 0K 0K 166960K 23 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 61 281K 281K 166960K 61 0 exec 0 0K 1K 166960K 2097 0 pfkey data 0 0K 0K 166960K 5 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 239 89K 91K 166960K 26805 0 UVM aobj 113 3K 3K 166960K 113 0 pinsyscall 31 62K 98K 166960K 7420 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 9 0K 2K 166960K 388 0 temp 74 6816K 6948K 166960K 93013 0 kqueue 13 20K 30K 166960K 328 0 SYN cache 2 16K 16K 166960K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 387 0 384 1 0 1 1 0 8 0 rtentry 112 1441 0 1363 4 1 3 4 0 8 0 unpcb 144 1623 0 1608 7 4 3 4 0 8 2 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 754 0 750 16 8 8 8 0 8 7 arp 88 262 0 246 1 0 1 1 0 8 0 ipq 40 10 0 9 1 0 1 1 0 8 0 ipqe 40 147 0 146 1 0 1 1 0 8 0 inpcb 336 2735 0 2728 16 9 7 10 0 8 6 nd6 104 380 0 362 1 0 1 1 0 8 0 pkpcb 40 19 0 19 3 2 1 1 0 8 1 kcovpl 48 120 0 113 1 0 1 1 0 8 0 ppxss 1072 15 0 15 2 1 1 1 0 8 1 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 12 0 8 1 0 1 1 0 8 0 pfstate 344 6 0 4 1 0 1 1 0 8 0 pfrule 1344 5 0 5 2 2 0 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 pool(rttmr): free list modified: page 0xfffffd80637ad000; item ordinal 0; addr 0xfffffd80637addd0 (p 0xfffffd80637ad000); offset 0x10=0xffffffff art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 5748 0 5396 40 10 30 30 0 8 5 art_table 32 5751 0 5396 5 1 4 4 0 8 0 art_node 16 1437 0 1368 1 0 1 1 0 8 0 sysvmsgpl 40 20 0 12 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 44 0 24 1 0 1 1 0 8 0 shmpl 112 110 0 0 4 0 4 4 0 8 0 dirhash 1024 40 0 21 4 0 4 4 0 8 1 dino2pl 256 4704 0 2983 108 0 108 108 0 8 0 ffsino 240 4704 0 2983 103 1 102 102 0 8 0 nchpl 144 7339 0 5504 68 0 68 68 0 8 0 uvmvnodes 80 6849 0 0 140 0 140 140 0 8 0 vnodes 216 6849 0 0 381 0 381 381 0 8 0 namei 1024 37254 0 37254 6 4 2 2 0 8 2 kstatmem 264 278 0 260 2 0 2 2 0 8 0 acpiwqpl 32 33 0 33 1 0 1 1 1 8 1 scsiplug 72 9 0 9 3 2 1 1 0 8 1 scxspl 216 72923 0 72923 12 9 3 8 1 8 3 plimitpl 152 811 0 791 1 0 1 1 0 8 0 sigapl 424 3552 0 3504 9 1 8 8 0 8 1 futexpl 64 26656 0 26656 1 0 1 1 0 8 1 knotepl 120 88504 0 88457 53 43 10 17 0 8 8 kqueuepl 184 489 0 479 1 0 1 1 0 8 0 pipepl 288 617 0 590 6 1 5 5 0 8 2 fdescpl 432 3514 0 3492 5 1 4 5 0 8 0 filepl 120 17965 0 17743 22 7 15 15 0 8 6 lockfpl 104 732 0 726 1 0 1 1 0 8 0 lockfspl 48 267 0 263 1 0 1 1 0 8 0 sessionpl 144 136 0 128 1 0 1 1 0 8 0 pgrppl 48 283 0 266 1 0 1 1 0 8 0 ucredpl 104 2790 0 2778 1 0 1 1 0 8 0 zombiepl 144 3853 0 3844 1 0 1 1 0 8 0 processpl 1096 3552 0 3504 6 0 6 6 0 8 1 procpl 648 6190 0 6131 9 2 7 8 0 8 1 sosppl 168 13 0 13 3 2 1 1 0 8 1 sockpl 504 4823 0 4798 48 36 12 27 0 8 8 mcl64k 65536 24 0 24 3 2 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl12k 12288 5 0 5 1 0 1 1 0 8 1 mcl8k 8192 22 0 22 3 2 1 1 0 8 1 mcl4k 4096 5311 0 5260 17 9 8 15 0 8 1 mcl2k 2048 3996 0 3990 6 3 3 3 0 8 2 mtagpl 96 31 0 31 3 2 1 1 0 8 1 mbufpl 256 35225 0 35082 46 27 19 23 0 8 8 bufpl 280 14939 0 6819 580 0 580 580 0 8 0 anonpl 24 518115 0 507312 171 80 91 91 0 187 25 amapchunkpl 152 94943 0 93878 83 37 46 46 0 158 5 amappl16 200 9152 0 9134 73 65 8 15 0 8 7 amappl15 192 12 0 12 1 1 0 1 0 8 0 amappl14 184 338 0 328 1 0 1 1 0 8 0 amappl13 176 10 0 10 1 1 0 1 0 8 0 amappl12 168 5914 0 5884 3 1 2 3 0 8 0 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 1 0 1 0 8 0 amappl9 144 124 0 124 1 1 0 1 0 8 0 amappl8 136 25 0 24 1 0 1 1 0 8 0 amappl7 128 326 0 315 1 0 1 1 0 8 0 amappl6 120 1294 0 1291 1 0 1 1 0 8 0 amappl5 112 577 0 567 1 0 1 1 0 8 0 amappl4 104 624 0 610 1 0 1 1 0 8 0 amappl3 96 16639 0 16512 6 2 4 4 0 8 0 amappl2 88 2268 0 2206 2 0 2 2 0 8 0 amappl1 80 24496 0 23986 14 2 12 14 0 8 0 amappl 88 25441 0 25257 5 0 5 5 0 92 0 dma8192 8192 1 0 1 1 0 1 1 0 8 1 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 128 254 0 254 2 2 0 1 0 8 0 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 112 0 0 3 0 3 3 0 8 0 uaddrrnd 24 3514 0 3485 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3514 0 3485 1 0 1 1 0 8 0 vmmpekpl 168 27528 0 27472 3 0 3 3 0 8 0 vmmpepl 168 217495 0 215737 113 25 88 88 0 357 11 vmsppl 344 3513 0 3484 4 1 3 4 0 8 0 rwobjpl 24 67302 0 59483 48 0 48 48 0 8 0 pdppl 4096 7034 0 6968 266 196 70 82 0 8 4 pvpl 32 1706718 0 1673001 777 424 353 379 0 265 70 pmappl 216 3513 0 3484 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 697 0 311 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 softclock_thread(ffff80002a40d440) at softclock_thread+0xe3 sys/kern/kern_timeout.c:811 end trace frame: 0x0, count: -2 ddb> machine ddbcpu 1 No such command ddb> trace __x86_indirect_thunk_r11() at __x86_indirect_thunk_r11+0x14 softclock_thread(ffff80002a40d440) at softclock_thread+0xe3 sys/kern/kern_timeout.c:811 end trace frame: 0x0, count: -2