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(deadbeefdeadbfcf) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a73d758) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a773cd0 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0 rax 0xffff80002a73d700 r8 0xffffffffffffffff r9 0 r10 0xd62635b98a0db0bf r11 0xe251c2298b40ce8d r12 0xdeadbeefdeadbeef r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeadbeefdeadbfcf r15 0 rip 0xffffffff82c634ce mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a773ca0 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=198997 pid=73565 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=0xffff80002a73d4c0,0xffff80002a73da00 process=0xffff8000ffffe880 user=0xffff80002a76e000, vmspace=0xffffffff8388fe78 estcpu=0, cpticks=15, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 81315 145711 5160 0 2 0 syz-executor 81315 77173 5160 0 3 0x4000080 fsleep syz-executor 83752 421026 0 0 3 0x14280 nfsidl nfsio 88423 495295 0 0 3 0x14280 nfsidl nfsio 30144 365661 0 0 3 0x14280 nfsidl nfsio 5650 326385 0 0 3 0x14280 nfsidl nfsio 27387 192049 21040 0 3 0 vmmaplk syz-executor 27387 280613 21040 0 3 0x4000080 fsleep syz-executor 27387 302802 21040 0 2 0x4000000 syz-executor 81112 320982 0 0 3 0x14280 nfsidl nfsio 31330 99053 41891 0 3 0x80 nanoslp syz-executor 31330 331702 41891 0 3 0x4000080 ttyin syz-executor 31330 110676 41891 0 3 0x4000080 fsleep syz-executor 71589 107510 76642 0 3 0 vmmaplk syz-executor 71589 505627 76642 0 2 0x4000000 syz-executor 88235 351634 59653 -1 3 0x90 nanoslp syz-executor 88235 447507 59653 -1 2 0x4000010 syz-executor 88235 499047 59653 -1 3 0x4000090 kqread syz-executor 88235 193056 59653 -1 3 0x4000090 fsleep syz-executor 89859 522277 87515 0 2 0x2 syz-executor 21040 329923 87515 0 3 0x82 nanoslp syz-executor 46365 161434 1 0 3 0x100083 ttyin getty 86353 311961 0 0 3 0x14200 acct acct 59653 2111 87515 0 3 0x82 nanoslp syz-executor 5160 323152 87515 0 2 0x2 syz-executor 32847 497738 87515 0 2 0x2 syz-executor 47753 119301 87515 0 3 0x82 nanoslp syz-executor 76642 40778 87515 0 3 0x82 nanoslp syz-executor 41891 14399 87515 0 3 0x82 nanoslp syz-executor 87515 411742 84851 0 3 0x82 kqread syz-executor 84851 220942 78139 0 3 0x10008a sigsusp ksh 78139 296199 31804 0 3 0x98 kqread sshd-session 31804 159501 44641 0 3 0x92 kqread sshd-session 44641 220112 1 0 3 0x88 kqread sshd 10403 80767 89498 73 3 0x1100090 kqread syslogd 89498 163556 1 0 3 0x100082 sbwait syslogd 75330 20391 1 0 3 0x100080 kqread resolvd 11251 277020 42075 77 3 0x100092 kqread dhcpleased 64633 523963 42075 77 3 0x100092 kqread dhcpleased 42075 310718 1 0 3 0x80 kqread dhcpleased 49104 139720 0 0 3 0x14200 bored smr 84145 416024 0 0 2 0x14200 zerothread 95486 431086 0 0 3 0x14200 aiodoned aiodoned 95860 330041 0 0 3 0x14200 syncer update 6463 500640 0 0 3 0x14200 cleaner cleaner *73565 198997 0 0 7 0x14200 reaper 16616 523798 0 0 3 0x14200 pgdaemon pagedaemon 40476 329357 0 0 3 0x14200 bored viomb 8991 419652 0 0 3 0x40014200 acpi0 acpi0 89925 207528 0 0 3 0x14200 bored softnet0 96143 523585 0 0 3 0x14200 bored systqmp 94465 481903 0 0 3 0x14200 bored systq 11512 294904 0 0 3 0x40014200 tmoslp softclock 81621 305915 0 0 3 0x40014200 idle0 1 8818 0 0 3 0x80082 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 10200 11116K 11592K 166960K 14919 0 pcb 17 19K 24K 166960K 789 0 rtable 205 13K 13K 166960K 1142 0 pf 27 12K 15K 166960K 219 0 ifaddr 28 5K 8K 166960K 178 0 ifgroup 42 1K 2K 166960K 280 0 sysctl 4 1K 9K 166960K 19 0 counters 30 17K 18K 166960K 164 0 ioctlops 0 0K 4K 166960K 429 0 iov 0 0K 36K 166960K 203 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1523 96K 96K 166960K 3997 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 39 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 133 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 225K 166960K 2346 0 sigio 0 0K 0K 166960K 107 0 proc 60 59K 116K 166960K 1053 0 subproc 72 4K 4K 166960K 181 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 248 0 in_multi 55 4K 7K 166960K 278 0 ether_multi 1 0K 0K 166960K 15 0 mrt 0 0K 0K 166960K 18 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 259 1155K 1155K 166960K 259 0 exec 0 0K 1K 166960K 897 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 7 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 224 150K 170K 166960K 22121 0 UVM aobj 57 20K 20K 166960K 64 0 pinsyscall 38 76K 95K 166960K 3758 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 152 0 NDP 9 0K 2K 166960K 132 0 temp 81 8668K 8738K 166960K 89735 0 kqueue 20 27K 33K 166960K 469 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 120 294 0 289 2 1 1 2 0 8 0 rtentry 136 291 0 224 4 0 4 4 0 8 0 unpcb 144 2182 0 2163 16 10 6 6 0 8 4 syncache 336 9 0 9 2 2 0 1 0 8 0 tcpqe 32 5 0 5 1 1 0 1 0 8 0 tcpcb 736 964 0 959 12 10 2 7 0 8 1 arp 96 47 0 37 1 0 1 1 0 8 0 ipq 40 7 0 6 1 0 1 1 0 8 0 ipqe 40 8 0 7 1 0 1 1 0 8 0 inpcb 328 2815 0 2805 26 24 2 15 0 8 1 ip6q 72 21 0 20 1 0 1 1 0 8 0 ip6af 40 38 0 37 1 0 1 1 0 8 0 nd6 112 65 0 51 1 0 1 1 0 8 0 pkpcb 40 22 0 22 3 2 1 1 0 8 1 kcovpl 48 20 0 12 1 0 1 1 0 8 0 mppekey 1024 3 0 3 2 2 0 1 0 8 0 ppxss 1072 105 0 105 2 1 1 1 0 8 1 pppxif 1384 7 0 7 2 2 0 1 0 8 0 pfstscr 40 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 3 0 3 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 pfrule 1344 3 0 3 1 1 0 1 0 8 0 rttmr 136 4 0 4 2 2 0 1 0 8 0 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 1330 0 995 34 12 22 31 0 8 0 art_table 40 1334 0 995 6 0 6 6 0 8 0 art_node 32 287 0 227 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 8 1 0 1 1 0 8 0 semupl 112 2 0 2 2 2 0 1 0 8 0 semapl 112 129 0 119 1 0 1 1 0 8 0 shmpl 112 54 0 7 2 0 2 2 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 5791 0 4272 96 0 96 96 0 8 0 ffsino 256 5791 0 4272 96 0 96 96 0 8 0 nchpl 144 8932 0 7211 64 0 64 64 0 8 0 rtmask 32 32 0 32 3 2 1 1 0 8 1 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 33048 0 33048 3 2 1 1 0 8 1 vcpupl 3904 7 0 0 1 0 1 1 0 8 0 vmpool 800 7 0 0 1 0 1 1 0 8 0 kstatmem 264 184 0 166 2 0 2 2 0 8 0 scsiplug 72 15 0 15 3 2 1 1 0 8 1 scxspl 216 26510 0 26510 9 8 1 8 1 8 1 plimitpl 152 579 0 562 1 0 1 1 0 8 0 sigapl 424 2630 0 2582 8 2 6 8 0 8 0 knotepl 120 99193 0 98979 31 21 10 17 0 8 3 kqueuepl 184 1082 0 1038 10 6 4 4 0 8 1 pipepl 304 420 0 392 10 7 3 8 0 8 0 fdescpl 448 2587 0 2558 5 1 4 5 0 8 0 filepl 120 19379 0 19123 24 11 13 16 0 8 2 lockfpl 104 1131 0 1129 3 2 1 2 0 8 0 lockfspl 48 490 0 488 1 0 1 1 0 8 0 sessionpl 144 42 0 34 1 0 1 1 0 8 0 pgrppl 48 88 0 72 1 0 1 1 0 8 0 ucredpl 104 3389 0 3377 1 0 1 1 0 8 0 zombiepl 144 2725 0 2724 1 0 1 1 0 8 0 processpl 1152 2630 0 2582 5 0 5 5 0 8 0 procpl 664 5797 0 5740 7 1 6 7 0 8 0 sosppl 176 18 0 18 2 2 0 1 0 8 0 sockpl 552 5379 0 5345 40 28 12 15 0 8 8 mcl64k 65536 119 0 118 2 1 1 1 0 8 0 mcl16k 16384 10 0 10 3 2 1 1 0 8 1 mcl9k 9216 2 0 2 2 1 1 1 0 8 1 mcl8k 8192 27 0 27 2 2 0 1 0 8 0 mcl4k 4096 5324 0 5272 13 5 8 13 0 8 0 mcl2k2 2112 3 0 3 1 1 0 1 0 8 0 mcl2k 2048 3591 0 3583 15 13 2 11 0 8 1 mtagpl 96 106 0 59 2 0 2 2 0 8 0 mbufpl 256 30292 0 30019 145 120 25 77 0 8 7 bufpl 280 7593 0 1371 445 0 445 445 0 8 0 anonpl 24 403575 0 399110 61 22 39 49 0 187 0 amapchunkpl 152 86334 0 85861 54 30 24 38 0 158 0 amappl16 200 5816 0 5726 38 33 5 16 0 8 0 amappl15 192 9 0 9 2 1 1 1 0 8 1 amappl14 184 9 0 9 1 1 0 1 0 8 0 amappl13 176 548 0 547 1 0 1 1 0 8 0 amappl12 168 3049 0 3012 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 45 0 34 1 0 1 1 0 8 0 amappl9 144 246 0 246 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 132 0 130 1 0 1 1 0 8 0 amappl6 120 423 0 411 1 0 1 1 0 8 0 amappl5 112 86 0 76 1 0 1 1 0 8 0 amappl4 104 505 0 479 1 0 1 1 0 8 0 amappl3 96 13248 0 13166 3 0 3 3 0 8 0 amappl2 88 2717 0 2646 2 0 2 2 0 8 0 amappl1 80 20363 0 19828 13 0 13 13 0 8 0 amappl 88 20773 0 20617 5 0 5 5 0 92 0 uvmvnodes 80 162 0 0 4 0 4 4 0 8 0 dma4096 4096 2 0 2 2 2 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 128 256 0 256 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 20 0 19 1 0 1 1 0 8 0 aobjpl 72 63 0 7 2 0 2 2 0 8 0 uaddrrnd 24 2587 0 2558 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2586 0 2558 1 0 1 1 0 8 0 vmmpekpl 168 18872 0 18821 3 0 3 3 0 8 0 vmmpepl 168 165515 0 163693 107 21 86 93 0 357 0 vmsppl 368 2586 0 2558 4 1 3 4 0 8 0 rwobjpl 40 41595 0 40480 14 1 13 14 0 8 0 pdppl 4096 5195 0 5123 151 75 76 83 0 8 4 pvpl 32 1150367 0 1140569 158 56 102 130 0 265 0 pmappl 216 2593 0 2558 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 596 0 251 12 0 12 12 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(deadbeefdeadbfcf) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a73d758) 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(deadbeefdeadbfcf) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deadbeefdeadbeef,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a73d758) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3