kernel: protection fault trap, code=0 Stopped at mtx_enter+0x6e: 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(deaf4152deaf4232) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deaf4152deaf4152,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a73ccf8) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a772fd0 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0 rax 0xffff80002a73cc00 r8 0xffffffffffffffff r9 0 r10 0xd242dc231a5c5839 r11 0x92d16fcfa164defa r12 0xdeaf4152deaf4152 r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeaf4152deaf4232 r15 0 rip 0xffffffff8103e9de mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a772fa0 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=269594 pid=75127 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=0xffff80002a73c530,0xffff80002a73d238 process=0xffff8000ffffcd80 user=0xffff80002a76e000, vmspace=0xffffffff838fd4f8 estcpu=0, cpticks=133, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 5108 237455 31275 0 2 0 syz-executor 5108 300634 31275 0 3 0x4000080 fsleep syz-executor 87301 488048 0 0 3 0x14280 nfsidl nfsio 61134 413129 2318 0 2 0 syz-executor 85490 92306 27951 0 2 0 syz-executor 85490 403478 27951 0 3 0x4000080 kqpoll syz-executor 46996 88338 26567 0 2 0 syz-executor 46996 81451 26567 0 3 0x4000080 fsleep syz-executor 46996 176297 26567 0 2 0x4000000 syz-executor 62850 349065 34949 0 2 0x10 syz-executor 62850 237549 34949 0 3 0x4000090 fsleep syz-executor 62850 314806 34949 0 3 0x4000090 fsleep syz-executor 40137 89248 73074 60928 2 0x10 syz-executor 40137 119380 73074 60928 3 0x4000090 fsleep syz-executor 40137 427775 73074 60928 3 0x4000090 fsleep syz-executor 22961 65061 28936 0 2 0 syz-executor 22961 240923 28936 0 2 0x4000000 syz-executor 22961 154841 28936 0 3 0x4000080 sysctllk syz-executor 31275 511776 1671 0 2 0x2 syz-executor 28936 147127 1671 0 3 0x82 nanoslp syz-executor 90642 346395 1 0 3 0x100083 ttyin getty 2318 322833 1671 0 3 0x82 nanoslp syz-executor 73074 445823 1671 0 3 0x82 nanoslp syz-executor 34949 175589 1671 0 3 0x82 nanoslp syz-executor 26567 328073 1671 0 3 0x82 nanoslp syz-executor 27951 229558 1671 0 3 0x82 nanoslp syz-executor 63459 258859 1671 0 2 0x2 syz-executor 1671 491885 65574 0 3 0x82 kqread syz-executor 65574 148792 23295 0 3 0x10008a sigsusp ksh 23295 425742 13482 0 3 0x98 kqread sshd-session 13482 438248 37182 0 3 0x92 kqread sshd-session 37182 48370 1 0 3 0x88 kqread sshd 80859 249709 31216 73 3 0x1100090 kqread syslogd 31216 51300 1 0 3 0x100082 sbwait syslogd 66221 94511 1 0 3 0x100080 kqread resolvd 83585 377700 61708 77 3 0x100092 kqread dhcpleased 88992 67898 61708 77 3 0x100092 kqread dhcpleased 61708 416433 1 0 3 0x80 kqread dhcpleased 7901 19654 0 0 3 0x14200 bored smr 41031 128392 0 0 2 0x14200 zerothread 57430 282952 0 0 3 0x14200 aiodoned aiodoned 18448 412922 0 0 3 0x14200 syncer update 82965 388888 0 0 3 0x14200 cleaner cleaner *75127 269594 0 0 7 0x14200 reaper 65172 364501 0 0 3 0x14200 pgdaemon pagedaemon 45022 452334 0 0 3 0x14200 bored viomb 57656 369582 0 0 3 0x40014200 acpi0 acpi0 50474 80448 0 0 3 0x14200 bored softnet0 71871 99875 0 0 3 0x14200 bored systqmp 73661 507176 0 0 3 0x14200 bored systq 76341 268472 0 0 3 0x40014200 tmoslp softclock 93646 127557 0 0 3 0x40014200 idle0 1 460335 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 10206 11069K 12109K 166960K 13584 0 pcb 17 16K 18K 166960K 730 0 rtable 229 12K 13K 166960K 802 0 pf 34 13K 17K 166960K 238 0 ifaddr 38 7K 9K 166960K 160 0 ifgroup 52 2K 2K 166960K 267 0 sysctl 4 1K 9K 166960K 32 0 counters 33 17K 18K 166960K 186 0 ioctlops 0 0K 4K 166960K 621 0 iov 0 0K 26K 166960K 171 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1609 101K 101K 166960K 3700 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 30 2K 2K 166960K 200 0 dirhash 12 2K 2K 166960K 54 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 110K 166960K 2839 0 sigio 0 0K 0K 166960K 95 0 proc 60 59K 108K 166960K 836 0 subproc 72 4K 8K 166960K 156 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 473 0 in_multi 80 6K 7K 166960K 202 0 ether_multi 1 0K 0K 166960K 19 0 mrt 2 0K 0K 166960K 33 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 887 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 3 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 236 144K 160K 166960K 28739 0 UVM aobj 48 4K 4K 166960K 54 0 pinsyscall 38 76K 94K 166960K 3988 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 246 0 NDP 12 0K 2K 166960K 117 0 temp 84 8652K 8780K 166960K 110907 0 kqueue 16 22K 34K 166960K 564 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 120 307 0 303 2 1 1 2 0 8 0 rtentry 136 223 0 136 4 0 4 4 0 8 0 unpcb 144 2052 0 2035 9 8 1 6 0 8 0 syncache 336 14 0 14 3 3 0 1 0 8 0 tcpqe 32 7 0 7 3 3 0 1 0 8 0 tcpcb 736 1098 0 1092 11 10 1 10 0 8 0 arp 96 40 0 25 1 0 1 1 0 8 0 ipq 40 15 0 12 2 1 1 1 0 8 0 ipqe 40 20 0 17 2 1 1 1 0 8 0 inpcb 328 3042 0 3032 23 21 2 15 0 8 0 ip6q 72 31 0 30 1 0 1 1 0 8 0 ip6af 40 56 0 55 1 0 1 1 0 8 0 nd6 112 39 0 18 1 0 1 1 0 8 0 pkpcb 40 23 0 23 4 3 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1072 137 0 136 4 3 1 1 0 8 0 pppxif 1384 5 0 5 2 2 0 1 0 8 0 pfrktable 1344 6 0 6 2 2 0 1 0 8 0 pfanchor 1288 1 0 0 1 0 1 1 0 8 0 pfstitem 24 2 0 0 1 0 1 1 0 8 0 pfstkey 128 4 0 2 1 0 1 1 0 8 0 pfstate 384 2 0 1 1 0 1 1 0 8 0 pfrule 1344 6 0 5 1 0 1 1 0 8 0 rttmr 136 11 0 11 2 2 0 1 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 920 0 582 31 7 24 31 0 8 0 art_table 40 923 0 582 5 0 5 5 0 8 0 art_node 32 221 0 148 1 0 1 1 0 8 0 sysvmsgpl 40 8 0 4 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 191 0 163 1 0 1 1 0 8 0 shmpl 112 51 0 6 2 0 2 2 0 8 0 dirhash 1024 46 0 29 3 0 3 3 0 8 0 dino2pl 256 7136 0 5641 95 0 95 95 0 8 0 ffsino 256 7136 0 5641 95 0 95 95 0 8 0 nchpl 144 11199 0 9500 64 0 64 64 0 8 0 rtmask 32 18 0 18 2 2 0 1 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 41052 0 41052 5 4 1 2 0 8 1 kstatmem 264 194 0 170 3 1 2 3 0 8 0 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 19 0 19 4 3 1 1 0 8 1 scxspl 216 42061 0 42061 23 21 2 8 1 8 2 plimitpl 152 921 0 905 1 0 1 1 0 8 0 sigapl 424 3163 0 3120 8 2 6 8 0 8 0 knotepl 120 298164 0 298113 63 53 10 17 0 8 7 kqueuepl 184 1050 0 1037 6 5 1 4 0 8 0 pipepl 304 440 0 413 8 5 3 8 0 8 0 fdescpl 448 3103 0 3074 5 1 4 5 0 8 0 filepl 120 22501 0 22284 22 13 9 14 0 8 0 lockfpl 104 1548 0 1545 2 1 1 2 0 8 0 lockfspl 48 549 0 546 1 0 1 1 0 8 0 sessionpl 144 32 0 24 1 0 1 1 0 8 0 pgrppl 48 81 0 65 1 0 1 1 0 8 0 ucredpl 104 4817 0 4802 1 0 1 1 0 8 0 zombiepl 144 5074 0 5074 2 1 1 1 0 8 1 processpl 1152 3163 0 3120 5 1 4 5 0 8 0 procpl 664 8315 0 8262 10 4 6 8 0 8 0 sosppl 176 22 0 22 4 3 1 1 0 8 1 sockpl 552 5631 0 5600 31 28 3 15 0 8 0 mcl64k 65536 769 0 768 3 2 1 2 0 8 0 mcl16k 16384 4 0 4 2 1 1 1 0 8 1 mcl12k 12288 2 0 2 1 1 0 1 0 8 0 mcl9k 9216 4 0 4 1 1 0 1 0 8 0 mcl8k 8192 115 0 115 4 3 1 1 0 8 1 mcl4k 4096 6727 0 6675 18 10 8 16 0 8 1 mcl2k2 2112 3 0 3 2 2 0 1 0 8 0 mcl2k 2048 4164 0 4159 5 3 2 3 0 8 1 mtagpl 96 6 0 6 3 3 0 1 0 8 0 mbufpl 256 36105 0 35987 21 8 13 19 0 8 1 bufpl 280 20107 0 13885 445 0 445 445 0 8 0 anonpl 24 450306 0 442934 125 62 63 79 0 187 4 amapchunkpl 152 110494 0 109912 54 22 32 37 0 158 5 amappl16 200 9286 0 9100 82 67 15 22 0 8 1 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 3 0 3 1 1 0 1 0 8 0 amappl13 176 445 0 444 1 0 1 1 0 8 0 amappl12 168 3475 0 3437 2 0 2 2 0 8 0 amappl11 160 14 0 14 1 1 0 1 0 8 0 amappl10 152 40 0 30 1 0 1 1 0 8 0 amappl9 144 282 0 281 2 1 1 1 0 8 0 amappl8 136 19 0 17 1 0 1 1 0 8 0 amappl7 128 83 0 81 1 0 1 1 0 8 0 amappl6 120 305 0 293 1 0 1 1 0 8 0 amappl5 112 70 0 62 1 0 1 1 0 8 0 amappl4 104 422 0 398 1 0 1 1 0 8 0 amappl3 96 17553 0 17466 3 0 3 3 0 8 0 amappl2 88 3272 0 3199 2 0 2 2 0 8 0 amappl1 80 22043 0 21500 14 1 13 14 0 8 0 amappl 88 27467 0 27299 5 0 5 5 0 92 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma8192 8192 1 0 1 1 1 0 1 0 8 0 dma4096 4096 4 0 4 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 2 0 2 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 0 1 0 8 0 dma128 128 258 0 258 3 3 0 1 0 8 0 dma64 64 8 0 8 2 2 0 1 0 8 0 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 53 0 6 1 0 1 1 0 8 0 uaddrrnd 24 3103 0 3074 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3103 0 3074 1 0 1 1 0 8 0 vmmpekpl 168 26399 0 26361 2 0 2 2 0 8 0 vmmpepl 168 202315 0 200346 123 30 93 99 0 357 3 vmsppl 368 3102 0 3074 4 1 3 4 0 8 0 rwobjpl 40 58519 0 51533 75 1 74 74 0 8 0 pdppl 4096 6213 0 6148 136 69 67 83 0 8 2 pvpl 32 1326717 0 1312775 221 84 137 153 0 265 6 pmappl 216 3102 0 3074 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 453 0 130 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(deaf4152deaf4232) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deaf4152deaf4152,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a73ccf8) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> machine ddbcpu 1 No such command ddb> trace mtx_enter(deaf4152deaf4232) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deaf4152deaf4152,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a73ccf8) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3