kernel: protection fault trap, code=0 Stopped at mtx_enter+0x59: movq 0(%r14),%rax ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace mtx_enter(deadbeefdeadbfd7) at mtx_enter+0x59 sys/kern/kern_lock.c:303 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:901 reaper(ffff80002a457be0) at reaper+0x30c sys/kern/kern_exit.c:489 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a455d80 rbx 0 rdx 0 rcx 0xffffffff83431ff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a457be0 r8 0xffffffffffffffff r9 0 r10 0xacc5df8114cf78fb r11 0xf74b99cf7905a47c r12 0 r13 0xffff80002a457be0 r14 0xdeadbeefdeadbfd7 r15 0 rip 0xffffffff812fea99 mtx_enter+0x59 cs 0x8 rflags 0x10246 __ALIGN_SIZE+0xf246 rsp 0xffff80002a455d50 ss 0x10 mtx_enter+0x59: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=200992 pid=67083 tcnt=1 stat=onproc flags process=14000 proc=200 runpri=32, usrpri=50, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a40d1b8,0xffff80002a4571d0 process=0xffff8000ffffef18 user=0xffff80002a450000, vmspace=0xffffffff83562368 estcpu=0, cpticks=0, pctcpu=0.19, user=0, sys=62, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 76500 416510 0 0 3 0x14280 nfsidl nfsio 82764 207860 0 0 3 0x14280 nfsidl nfsio 30651 148708 16729 0 2 0 syz-executor 30651 354823 16729 0 2 0x4000000 syz-executor 93529 66721 68880 0 2 0 syz-executor 93529 84466 68880 0 2 0x4000000 syz-executor 93529 14855 68880 0 2 0x4000000 syz-executor 93529 422026 68880 0 2 0x4000000 syz-executor 27246 497865 84724 0 2 0 syz-executor 27246 42113 84724 0 3 0x4000080 fsleep syz-executor 27246 436659 84724 0 2 0x4000000 syz-executor 27605 427858 53637 0 2 0 syz-executor 27605 131586 53637 0 3 0x4000080 netcon syz-executor 27605 431828 53637 0 2 0x4000000 syz-executor 27605 82236 53637 0 3 0x4000080 fsleep syz-executor 90622 163234 10085 0 2 0x10 syz-executor 90622 303345 10085 0 3 0x4000090 sysctllk syz-executor 10085 505147 34713 0 3 0x82 nanoslp syz-executor 84724 380293 34713 0 3 0x82 nanoslp syz-executor 75672 26628 34713 0 2 0x2 syz-executor 46051 10178 0 0 3 0x14200 bored sosplice 71638 186391 0 0 3 0x14200 acct acct 53637 227905 34713 0 3 0x82 nanoslp syz-executor 91344 297579 34713 0 2 0x2 syz-executor 68880 143343 34713 0 3 0x82 nanoslp syz-executor 16729 264314 34713 0 3 0x82 nanoslp syz-executor 44237 464627 34713 0 3 0x2 biowait syz-executor 34713 34232 93311 0 2 0x2 syz-executor 93311 338913 30580 0 3 0x10008a sigsusp ksh 30580 158332 48107 0 3 0x98 kqread sshd-session 48107 115589 63922 0 3 0x92 kqread sshd-session 26736 347022 1 0 3 0x100083 ttyin getty 63922 253493 1 0 3 0x88 kqread sshd 70467 247696 67411 73 3 0x1100090 kqread syslogd 67411 255009 1 0 3 0x100082 sbwait syslogd 71562 400686 1 0 3 0x100080 kqread resolvd 79159 237606 19773 77 3 0x100092 kqread dhcpleased 97524 113279 19773 77 3 0x100092 kqread dhcpleased 19773 475652 1 0 3 0x80 kqread dhcpleased 15665 505982 0 0 3 0x14200 bored smr 63798 244560 0 0 2 0x14200 zerothread 3810 455048 0 0 3 0x14200 aiodoned aiodoned 62498 350076 0 0 3 0x14200 syncer update 51725 524133 0 0 3 0x14200 cleaner cleaner *67083 200992 0 0 7 0x14200 reaper 45033 132495 0 0 3 0x14200 pgdaemon pagedaemon 24646 118281 0 0 3 0x14200 bored viomb 8211 40153 0 0 3 0x40014200 acpi0 acpi0 28397 457867 0 0 3 0x14200 bored softnet3 21185 213274 0 0 3 0x14200 bored softnet2 60493 240035 0 0 3 0x14200 bored softnet1 35682 340477 0 0 3 0x14200 bored softnet0 50868 44501 0 0 3 0x14200 bored systqmp 16827 392728 0 0 3 0x14200 bored systq 21853 453625 0 0 3 0x40014200 tmoslp softclock 25099 90142 0 0 3 0x40014200 idle0 1 398182 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 devbuf 10197 11045K 11500K 166960K 11658 0 pcb 19 16K 17K 166960K 204 0 rtable 222 8K 8K 166960K 556 0 pf 32 13K 15K 166960K 73 0 ifaddr 37 6K 7K 166960K 76 0 ifgroup 46 2K 2K 166960K 95 0 sysctl 2 0K 2K 166960K 3 0 counters 29 17K 17K 166960K 44 0 ioctlops 0 0K 4K 166960K 87 0 iov 0 0K 16K 166960K 47 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1399 88K 88K 166960K 1807 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 9K 166960K 18 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 33 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 16 57K 97K 166960K 857 0 sigio 0 0K 0K 166960K 14 0 proc 60 59K 124K 166960K 646 0 subproc 104 6K 6K 166960K 156 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 92 0 in_multi 87 6K 7K 166960K 174 0 ether_multi 1 0K 0K 166960K 5 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 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 500 0 fusefs mount 1 32K 32K 166960K 1 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 209 71K 90K 166960K 9431 0 UVM aobj 15 2K 2K 166960K 16 0 pinsyscall 37 74K 100K 166960K 1989 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 34 0 NDP 10 0K 2K 166960K 51 0 temp 66 6819K 6924K 166960K 16552 0 kqueue 16 24K 30K 166960K 138 0 SYN cache 2 8K 16K 166960K 3 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 93 0 90 1 0 1 1 0 8 0 rtentry 112 178 0 78 4 0 4 4 0 8 0 unpcb 144 974 0 955 5 1 4 4 0 8 3 syncache 336 7 0 7 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 280 0 271 12 3 9 11 0 8 8 arp 88 30 0 15 1 0 1 1 0 8 0 ipq 40 1 0 1 1 0 1 1 0 8 1 ipqe 40 4 0 4 1 0 1 1 0 8 1 inpcb 336 843 0 829 12 3 9 10 0 8 7 nd6 104 43 0 19 1 0 1 1 0 8 0 pkpcb 40 2 0 2 2 1 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1072 8 0 8 2 1 1 1 0 8 1 pfrktable 1344 2 0 0 1 0 1 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pftag 88 2 0 0 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 6 0 2 1 0 1 1 0 8 0 pfstate 344 3 0 1 1 0 1 1 0 8 0 pfrule 1344 6 0 1 1 0 1 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 706 0 288 36 9 27 29 0 8 0 art_table 32 709 0 288 4 0 4 4 0 8 0 art_node 16 173 0 84 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 9 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 29 0 19 1 0 1 1 0 8 0 shmpl 112 13 0 1 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2752 0 1249 95 0 95 95 0 8 0 ffsino 240 2752 0 1249 89 0 89 89 0 8 0 nchpl 144 3925 0 2242 63 0 63 63 0 8 0 uvmvnodes 80 3097 0 0 64 0 64 64 0 8 0 vnodes 216 3097 0 0 173 0 173 173 0 8 0 namei 1024 13042 0 13041 3 2 1 2 0 8 0 kstatmem 264 50 0 30 2 0 2 2 0 8 0 scxspl 216 10976 0 10975 8 7 1 8 1 8 0 plimitpl 152 156 0 140 1 0 1 1 0 8 0 sigapl 424 1133 0 1085 7 1 6 7 0 8 0 futexpl 64 11312 0 11310 1 0 1 1 0 8 0 knotepl 120 36455 0 36393 26 16 10 18 0 8 8 kqueuepl 184 297 0 285 4 0 4 4 0 8 3 pipepl 288 298 0 271 12 5 7 7 0 8 4 fdescpl 432 1113 0 1085 5 1 4 5 0 8 0 filepl 120 6873 0 6625 18 4 14 14 0 8 5 lockfpl 104 272 0 270 1 0 1 1 0 8 0 lockfspl 48 101 0 99 1 0 1 1 0 8 0 sessionpl 144 28 0 20 1 0 1 1 0 8 0 pgrppl 48 50 0 34 1 0 1 1 0 8 0 ucredpl 104 972 0 960 1 0 1 1 0 8 0 zombiepl 144 1290 0 1290 1 0 1 1 0 8 1 processpl 1096 1133 0 1085 4 0 4 4 0 8 0 procpl 648 2225 0 2167 6 0 6 6 0 8 0 sosppl 168 6 0 5 2 1 1 1 0 8 0 sockpl 504 1924 0 1888 24 12 12 16 0 8 6 mcl64k 65536 8 0 8 2 1 1 1 0 8 1 mcl16k 16384 2 0 2 1 0 1 1 0 8 1 mcl8k 8192 83 0 83 2 1 1 1 0 8 1 mcl4k 4096 3548 0 3497 15 7 8 14 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 925 0 923 3 1 2 2 0 8 1 mtagpl 96 19 0 15 1 0 1 1 0 8 0 mbufpl 256 11514 0 11381 16 2 14 14 0 8 2 bufpl 280 4243 0 99 296 0 296 296 0 8 0 anonpl 24 258306 0 254988 69 22 47 47 0 187 15 amapchunkpl 152 50716 0 50272 45 8 37 37 0 158 13 amappl16 200 6890 0 6864 44 34 10 15 0 8 8 amappl15 192 15 0 15 1 1 0 1 0 8 0 amappl14 184 125 0 115 1 0 1 1 0 8 0 amappl13 176 20 0 20 1 1 0 1 0 8 0 amappl12 168 1799 0 1772 3 1 2 3 0 8 0 amappl11 160 52 0 42 1 0 1 1 0 8 0 amappl10 152 17 0 17 2 1 1 1 0 8 1 amappl9 144 124 0 124 1 1 0 1 0 8 0 amappl8 136 24 0 21 1 0 1 1 0 8 0 amappl7 128 104 0 94 1 0 1 1 0 8 0 amappl6 120 206 0 204 1 0 1 1 0 8 0 amappl5 112 148 0 138 1 0 1 1 0 8 0 amappl4 104 307 0 292 1 0 1 1 0 8 0 amappl3 96 5671 0 5589 3 0 3 3 0 8 0 amappl2 88 1420 0 1344 2 0 2 2 0 8 0 amappl1 80 10345 0 9840 15 2 13 13 0 8 0 amappl 88 8968 0 8812 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 7 0 7 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 15 0 1 1 0 1 1 0 8 0 uaddrrnd 24 1113 0 1085 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1113 0 1085 1 0 1 1 0 8 0 vmmpekpl 168 10227 0 10182 3 0 3 3 0 8 0 vmmpepl 168 77361 0 75713 102 12 90 90 0 357 13 vmsppl 352 1112 0 1085 4 1 3 4 0 8 0 rwobjpl 24 28749 0 24805 25 0 25 25 0 8 0 pdppl 4096 2232 0 2170 114 46 68 82 0 8 6 pvpl 32 554870 0 546613 150 38 112 116 0 265 21 pmappl 216 1112 0 1085 3 0 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 447 0 95 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(deadbeefdeadbfd7) at mtx_enter+0x59 sys/kern/kern_lock.c:303 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:901 reaper(ffff80002a457be0) at reaper+0x30c sys/kern/kern_exit.c:489 end trace frame: 0x0, count: -3 ddb> machine ddbcpu 1 No such command ddb> trace mtx_enter(deadbeefdeadbfd7) at mtx_enter+0x59 sys/kern/kern_lock.c:303 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:901 reaper(ffff80002a457be0) at reaper+0x30c sys/kern/kern_exit.c:489 end trace frame: 0x0, count: -3