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(ffff80002a72ccf8) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a763660 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0xffffffff83861ff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a72cc00 r8 0xffffffffffffffff r9 0 r10 0x1e69ad06e64033b0 r11 0xc9b9a6e437a9516a r12 0xdeaf4152deaf4152 r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeaf4152deaf4232 r15 0 rip 0xffffffff82ae26be mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a763630 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=38990 pid=35934 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=0xffff80002a72c530,0xffff80002a72cfa0 process=0xffff8000ffffe880 user=0xffff80002a75e000, vmspace=0xffffffff838f26d8 estcpu=0, cpticks=2, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 7969 503244 0 0 3 0x14280 nfsidl nfsio 30990 105101 53240 0 2 0 syz-executor 30990 303396 53240 0 3 0x4000080 fsleep syz-executor 67270 382469 70232 0 2 0 syz-executor 67270 80111 70232 0 3 0x4000080 sysctllk syz-executor 67270 383398 70232 0 2 0x4000000 syz-executor 36842 138308 20948 0 2 0x10 syz-executor 36842 25365 20948 0 3 0x4000090 fsleep syz-executor 71775 3999 0 0 3 0x14280 nfsidl nfsio 68197 121423 74974 0 2 0 syz-executor 68197 157372 74974 0 3 0x4000080 sbwait syz-executor 68197 29131 74974 0 2 0x4000000 syz-executor 42061 406752 24225 0 2 0 syz-executor 42061 260542 24225 0 3 0x4000080 netcon syz-executor 42061 75651 24225 0 3 0x4000080 fsleep syz-executor 42061 180788 24225 0 2 0x4000000 syz-executor 42435 357079 92624 0 3 0 vmmaplk syz-executor 42435 79500 92624 0 2 0x4000000 syz-executor 42435 221271 92624 0 2 0x4000000 syz-executor 42435 117972 92624 0 3 0x4000080 sysctllk syz-executor 42435 319982 92624 0 3 0x4000000 vmmaplk syz-executor 98160 307857 0 0 3 0x14200 acct acct 70232 484135 35077 0 3 0x82 nanoslp syz-executor 53240 122176 35077 0 3 0x82 nanoslp syz-executor 70836 267429 35077 0 2 0x2 syz-executor 92624 193481 35077 0 3 0x82 nanoslp syz-executor 20948 356952 35077 0 3 0x82 nanoslp syz-executor 89885 510541 35077 0 3 0x82 nanoslp syz-executor 74974 371949 35077 0 3 0x82 nanoslp syz-executor 24225 66341 35077 0 3 0x82 nanoslp syz-executor 35077 291805 42347 0 3 0x82 kqread syz-executor 42347 76029 80595 0 3 0x10008a sigsusp ksh 80595 386685 36500 0 3 0x98 kqread sshd-session 36500 6955 3438 0 3 0x92 kqread sshd-session 64537 204558 1 0 3 0x100083 ttyin getty 3438 19129 1 0 3 0x88 kqread sshd 69552 390460 93800 73 3 0x1100090 kqread syslogd 93800 54578 1 0 3 0x100082 sbwait syslogd 84216 507587 1 0 3 0x100080 kqread resolvd 53535 16966 79535 77 3 0x100092 kqread dhcpleased 66297 43274 79535 77 3 0x100092 kqread dhcpleased 79535 283143 1 0 3 0x80 kqread dhcpleased 53772 502962 0 0 3 0x14200 bored smr 53481 29932 0 0 2 0x14200 zerothread 34579 418373 0 0 3 0x14200 aiodoned aiodoned 60507 518194 0 0 3 0x14200 syncer update 54924 18987 0 0 3 0x14200 cleaner cleaner *35934 38990 0 0 7 0x14200 reaper 24928 308417 0 0 3 0x14200 pgdaemon pagedaemon 88965 468316 0 0 3 0x14200 bored viomb 69881 416988 0 0 3 0x40014200 acpi0 acpi0 70200 220557 0 0 3 0x14200 bored softnet0 29844 181272 0 0 3 0x14200 bored systqmp 37836 93616 0 0 3 0x14200 bored systq 87119 523087 0 0 3 0x40014200 tmoslp softclock 91897 425798 0 0 3 0x40014200 idle0 1 101420 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 10202 11176K 11562K 166960K 12022 0 pcb 17 16K 17K 166960K 100 0 rtable 220 6K 7K 166960K 390 0 pf 30 12K 14K 166960K 72 0 ifaddr 41 7K 8K 166960K 65 0 ifgroup 50 2K 2K 166960K 106 0 sysctl 3 1K 9K 166960K 9 0 counters 32 17K 18K 166960K 54 0 ioctlops 0 0K 4K 166960K 119 0 iov 1 4K 14K 166960K 18 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1441 91K 91K 166960K 1804 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 2K 6K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 16 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 89K 166960K 470 0 sigio 0 0K 0K 166960K 77 0 proc 60 59K 83K 166960K 506 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 45 0 in_multi 96 7K 7K 166960K 114 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 7 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 383 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 222 158K 177K 166960K 5970 0 UVM aobj 8 2K 2K 166960K 8 0 pinsyscall 38 76K 91K 166960K 1538 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 23 0 NDP 11 0K 2K 166960K 42 0 temp 43 8664K 8740K 166960K 11144 0 kqueue 17 24K 33K 166960K 93 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 60 0 56 1 0 1 1 0 8 0 rtentry 136 116 0 19 4 0 4 4 0 8 0 unpcb 144 278 0 260 3 2 1 3 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 247 0 241 16 15 1 16 0 8 0 arp 96 18 0 0 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 328 591 0 582 21 14 7 15 0 8 6 ip6q 72 2 0 2 1 0 1 1 0 8 1 ip6af 40 4 0 4 1 0 1 1 0 8 1 nd6 112 24 0 0 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 13 0 13 2 1 1 1 0 8 1 pppxif 1384 4 0 4 2 1 1 1 0 8 1 pftag 88 1 0 0 1 0 1 1 0 8 0 pfrule 1344 3 0 3 1 0 1 1 0 8 1 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 501 0 83 31 1 30 31 0 8 1 art_table 40 502 0 83 5 0 5 5 0 8 0 art_node 32 116 0 29 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 0 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 12 0 2 1 0 1 1 0 8 0 shmpl 112 5 0 0 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2170 0 673 95 0 95 95 0 8 0 ffsino 256 2170 0 673 95 0 95 95 0 8 0 nchpl 144 2871 0 1187 64 0 64 64 0 8 0 vnodes 216 2577 0 0 144 0 144 144 0 8 0 namei 1024 9779 0 9779 2 1 1 2 0 8 1 kstatmem 264 52 0 30 2 0 2 2 0 8 0 scsiplug 72 3 0 3 1 0 1 1 0 8 1 scxspl 216 9209 0 9209 8 7 1 8 1 8 1 plimitpl 152 151 0 135 1 0 1 1 0 8 0 sigapl 424 759 0 714 7 1 6 6 0 8 0 knotepl 120 17131 0 17075 18 8 10 10 0 8 8 kqueuepl 184 173 0 162 3 0 3 3 0 8 1 pipepl 304 138 0 111 3 0 3 3 0 8 0 fdescpl 448 743 0 714 5 1 4 5 0 8 0 filepl 120 4541 0 4327 16 6 10 14 0 8 1 lockfpl 104 458 0 456 3 0 3 3 0 8 2 lockfspl 48 224 0 222 2 0 2 2 0 8 1 sessionpl 144 21 0 13 1 0 1 1 0 8 0 pgrppl 48 69 0 53 1 0 1 1 0 8 0 ucredpl 104 535 0 523 1 0 1 1 0 8 0 zombiepl 144 807 0 806 1 0 1 1 0 8 0 processpl 1152 759 0 714 4 0 4 4 0 8 0 procpl 664 1306 0 1248 7 1 6 6 0 8 1 sosppl 176 5 0 4 2 1 1 1 0 8 0 sockpl 552 944 0 913 20 12 8 14 0 8 5 mcl64k 65536 28 0 28 2 1 1 1 0 8 1 mcl16k 16384 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 7 0 7 2 1 1 1 0 8 1 mcl4k 4096 2900 0 2847 14 6 8 13 0 8 1 mcl2k2 2112 1 0 1 1 0 1 1 0 8 1 mcl2k 2048 626 0 625 3 0 3 3 0 8 2 mtagpl 96 39 0 5 1 0 1 1 0 8 0 mbufpl 256 8667 0 8448 17 0 17 17 0 8 0 bufpl 280 3126 0 121 215 0 215 215 0 8 0 anonpl 24 136224 0 133058 55 10 45 45 0 187 21 amapchunkpl 152 18947 0 18506 36 10 26 31 0 158 5 amappl16 200 2727 0 2689 19 9 10 15 0 8 7 amappl15 192 42 0 41 1 0 1 1 0 8 0 amappl14 184 10 0 10 1 1 0 1 0 8 0 amappl13 176 406 0 405 1 0 1 1 0 8 0 amappl12 168 1078 0 1040 2 0 2 2 0 8 0 amappl11 160 21 0 21 1 1 0 1 0 8 0 amappl10 152 40 0 30 1 0 1 1 0 8 0 amappl9 144 250 0 249 1 0 1 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 80 0 79 1 0 1 1 0 8 0 amappl6 120 278 0 267 1 0 1 1 0 8 0 amappl5 112 72 0 64 1 0 1 1 0 8 0 amappl4 104 371 0 348 1 0 1 1 0 8 0 amappl3 96 3118 0 3038 3 0 3 3 0 8 0 amappl2 88 850 0 780 2 0 2 2 0 8 0 amappl1 80 10111 0 9570 13 1 12 13 0 8 0 amappl 88 5223 0 5070 5 0 5 5 0 92 1 uvmvnodes 80 101 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 128 254 0 254 2 1 1 1 0 8 1 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 7 0 0 1 0 1 1 0 8 0 uaddrrnd 24 743 0 714 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 743 0 714 1 0 1 1 0 8 0 vmmpekpl 168 7423 0 7393 2 0 2 2 0 8 0 vmmpepl 168 54168 0 52384 96 3 93 93 0 357 13 vmsppl 368 742 0 714 4 1 3 4 0 8 0 rwobjpl 40 17263 0 16327 14 1 13 13 0 8 3 pdppl 4096 1493 0 1428 95 28 67 79 0 8 2 pvpl 32 340303 0 331625 130 21 109 109 0 265 31 pmappl 216 742 0 714 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 390 0 58 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(ffff80002a72ccf8) 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(ffff80002a72ccf8) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3