kernel: protection fault trap, code=0 Stopped at mtx_enter+0x6e: movq 0(%r14),%r15 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace mtx_enter(dead4110dead41f0) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(dead4110dead4110,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72ccf8) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a763c70 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0xffffffff8381aff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a72cc00 r8 0xffffffffffffffff r9 0 r10 0x6622321be4758ab r11 0x5c70a414289caa5f r12 0xdead4110dead4110 r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdead4110dead41f0 r15 0 rip 0xffffffff81e0326e mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a763c40 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%r15 ddb> show proc PROC (reaper) tid=12428 pid=3727 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=0xffff80002a72c000,0xffff80002a72cfa0 process=0xffff8000ffffd200 user=0xffff80002a75e000, vmspace=0xffffffff83908608 estcpu=0, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 28667 165885 0 0 3 0x14280 nfsidl nfsio 37532 239481 67423 0 2 0 syz-executor 37532 449076 67423 0 3 0x4000080 fsleep syz-executor 73634 519433 68353 0 2 0 syz-executor 73634 278179 68353 0 3 0x4000080 fsleep syz-executor 26549 319939 6534 0 2 0 syz-executor 26549 335101 6534 0 3 0x4000080 fsleep syz-executor 24227 227918 0 0 3 0x14280 nfsidl nfsio 15229 266307 17976 0 2 0 syz-executor 15229 479799 17976 0 3 0x4000080 fsleep syz-executor 28752 113617 56449 0 2 0x82000 syz-executor 28752 506461 56449 0 3 0x4002000 suspend syz-executor 28752 446464 56449 0 4 0x4082000 syz-executor 28752 299905 56449 0 2 0x4082000 syz-executor 78568 51306 81058 0 2 0 syz-executor 78568 310294 81058 0 2 0x4000000 syz-executor 78568 65888 81058 0 3 0x4000080 sysctllk syz-executor 59931 35922 1 0 3 0x82 nanoslp getty 23163 406806 0 0 3 0x14200 acct acct 67423 23710 3052 0 3 0x82 nanoslp syz-executor 6534 326849 3052 0 3 0x82 nanoslp syz-executor 56449 367103 3052 0 3 0x82 nanoslp syz-executor 11370 289560 3052 0 2 0x2 syz-executor 68353 384443 3052 0 3 0x82 nanoslp syz-executor 17976 319007 3052 0 3 0x82 nanoslp syz-executor 81058 170711 3052 0 3 0x82 nanoslp syz-executor 32022 43408 3052 0 3 0x82 nanoslp syz-executor 3052 274088 43404 0 3 0x82 kqread syz-executor 43404 342076 77848 0 3 0x10008a sigsusp ksh 77848 190130 13756 0 3 0x98 kqread sshd-session 13756 489859 81942 0 3 0x92 kqread sshd-session 81942 127953 1 0 3 0x88 kqread sshd 17605 91069 97472 73 3 0x1100090 kqread syslogd 97472 495612 1 0 3 0x100082 sbwait syslogd 54505 166964 1 0 3 0x100080 kqread resolvd 49111 277028 13239 77 3 0x100092 kqread dhcpleased 62337 285978 13239 77 3 0x100092 kqread dhcpleased 13239 176234 1 0 3 0x80 kqread dhcpleased 9217 350730 0 0 3 0x14200 bored smr 96115 42380 0 0 2 0x14200 zerothread 96916 95877 0 0 3 0x14200 aiodoned aiodoned 29354 98884 0 0 3 0x14200 syncer update 5686 241235 0 0 3 0x14200 cleaner cleaner * 3727 12428 0 0 7 0x14200 reaper 29295 476389 0 0 3 0x14200 pgdaemon pagedaemon 72157 366297 0 0 3 0x14200 bored viomb 93650 434642 0 0 3 0x40014200 acpi0 acpi0 2819 458139 0 0 3 0x14200 bored softnet0 10761 150720 0 0 3 0x14200 bored systqmp 16695 25604 0 0 3 0x14200 bored systq 23005 338828 0 0 3 0x40014200 tmoslp softclock 97460 337560 0 0 3 0x40014200 idle0 1 309055 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11065 12109K 12519K 166960K 12795 0 pcb 17 12K 12K 166960K 81 0 rtable 219 8K 9K 166960K 440 0 pf 32 13K 14K 166960K 56 0 ifaddr 40 6K 7K 166960K 61 0 ifgroup 51 2K 2K 166960K 87 0 sysctl 3 1K 9K 166960K 10 0 counters 34 17K 18K 166960K 48 0 ioctlops 0 0K 4K 166960K 163 0 iov 0 0K 16K 166960K 10 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1406 88K 89K 166960K 1838 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 17 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 106K 166960K 454 0 sigio 0 0K 0K 166960K 13 0 proc 63 67K 116K 166960K 541 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 50 0 in_multi 88 6K 7K 166960K 117 0 ether_multi 1 0K 0K 166960K 9 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 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 449 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 234 152K 168K 166960K 5869 0 UVM aobj 8 2K 2K 166960K 10 0 pinsyscall 38 76K 95K 166960K 1533 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 18 0 NDP 12 0K 1K 166960K 39 0 temp 78 8672K 8751K 166960K 17943 0 kqueue 16 22K 28K 166960K 86 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 67 0 63 1 0 1 1 0 8 0 rtentry 136 123 0 33 4 0 4 4 0 8 0 unpcb 144 362 0 346 5 0 5 5 0 8 4 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 91 0 87 1 0 1 1 0 8 0 arp 96 20 0 4 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 1 1 0 1 1 0 8 0 inpcb 328 351 0 344 8 1 7 7 0 8 6 ip6q 72 2 0 1 1 0 1 1 0 8 0 ip6af 40 3 0 2 1 0 1 1 0 8 0 nd6 112 26 0 5 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 9 0 9 1 0 1 1 0 8 1 pppxif 1384 2 0 2 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 1 0 1 0 8 0 pfstkey 128 1 0 1 1 1 0 1 0 8 0 pfstate 384 1 0 1 1 1 0 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 503 0 104 29 2 27 29 0 8 1 art_table 40 506 0 104 5 0 5 5 0 8 0 art_node 32 123 0 42 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 7 1 0 1 1 0 8 0 semapl 112 15 0 5 1 0 1 1 0 8 0 shmpl 112 7 0 2 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2240 0 736 95 0 95 95 0 8 0 ffsino 256 2240 0 736 95 0 95 95 0 8 0 nchpl 144 2889 0 1198 63 0 63 63 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 vnodes 216 2586 0 0 144 0 144 144 0 8 0 namei 1024 10117 0 10117 4 2 2 2 0 8 2 kstatmem 264 44 0 20 2 0 2 2 0 8 0 scsiplug 72 1 0 1 1 1 0 1 0 8 0 scxspl 216 8609 0 8609 3 2 1 3 1 8 1 plimitpl 152 78 0 61 1 0 1 1 0 8 0 sigapl 424 742 0 697 7 1 6 6 0 8 0 knotepl 120 14876 0 14825 17 7 10 10 0 8 8 kqueuepl 184 186 0 176 1 0 1 1 0 8 0 pipepl 304 146 0 119 3 0 3 3 0 8 0 fdescpl 448 725 0 696 5 1 4 5 0 8 0 filepl 120 4517 0 4308 17 6 11 14 0 8 4 lockfpl 104 261 0 259 2 1 1 2 0 8 0 lockfspl 48 110 0 108 1 0 1 1 0 8 0 sessionpl 144 22 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 20 1 0 1 1 0 8 0 ucredpl 104 931 0 920 1 0 1 1 0 8 0 zombiepl 144 789 0 788 1 0 1 1 0 8 0 processpl 1152 742 0 697 4 0 4 4 0 8 0 procpl 664 1258 0 1204 6 0 6 6 0 8 1 sosppl 176 1 0 1 1 1 0 1 0 8 0 sockpl 552 795 0 768 10 0 10 10 0 8 7 mcl64k 65536 10 0 10 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 1 0 1 0 8 0 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 6 0 6 2 1 1 1 0 8 1 mcl4k 4096 2877 0 2826 15 7 8 14 0 8 0 mcl2k 2048 663 0 658 3 1 2 2 0 8 1 mtagpl 96 18 0 5 1 0 1 1 0 8 0 mbufpl 256 7140 0 6938 15 1 14 14 0 8 0 bufpl 280 3015 0 120 207 0 207 207 0 8 0 anonpl 24 120557 0 116972 54 20 34 44 0 187 9 amapchunkpl 152 18680 0 18195 44 9 35 35 0 158 14 amappl16 200 1609 0 1553 16 12 4 15 0 8 0 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 4 0 4 1 1 0 1 0 8 0 amappl13 176 406 0 405 1 0 1 1 0 8 0 amappl12 168 1070 0 1032 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 49 0 39 1 0 1 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 82 0 81 1 0 1 1 0 8 0 amappl6 120 263 0 251 1 0 1 1 0 8 0 amappl5 112 67 0 58 1 0 1 1 0 8 0 amappl4 104 383 0 357 1 0 1 1 0 8 0 amappl3 96 3180 0 3089 3 0 3 3 0 8 0 amappl2 88 842 0 772 2 0 2 2 0 8 0 amappl1 80 10077 0 9541 13 1 12 13 0 8 0 amappl 88 5118 0 4953 5 0 5 5 0 92 0 uvmvnodes 80 111 0 0 3 0 3 3 0 8 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 9 0 2 1 0 1 1 0 8 0 uaddrrnd 24 725 0 696 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 725 0 696 1 0 1 1 0 8 0 vmmpekpl 168 7373 0 7342 2 0 2 2 0 8 0 vmmpepl 168 51828 0 50013 92 9 83 90 0 357 0 vmsppl 368 724 0 696 4 1 3 4 0 8 0 rwobjpl 40 16039 0 15053 13 1 12 13 0 8 0 pdppl 4096 1457 0 1392 99 32 67 83 0 8 2 pvpl 32 320232 0 310158 126 35 91 120 0 265 5 pmappl 216 724 0 696 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 380 0 53 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(dead4110dead41f0) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(dead4110dead4110,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72ccf8) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> machine ddbcpu 1 No such command ddb> trace mtx_enter(dead4110dead41f0) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(dead4110dead4110,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72ccf8) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3