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(deafbeaddeafbf8d) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deafbeaddeafbead,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 0xffff80002a773270 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0 rax 0xffff80002a73d700 r8 0xffffffffffffffff r9 0 r10 0xe2546bad9cf58759 r11 0x14dc13b8f3a43139 r12 0xdeafbeaddeafbead r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeafbeaddeafbf8d r15 0 rip 0xffffffff8103e9de mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a773240 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=328607 pid=25292 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=0xffff80002a73ccf8,0xffff80002a73da00 process=0xffff8000ffffd680 user=0xffff80002a76e000, vmspace=0xffffffff838fd4f8 estcpu=0, cpticks=3, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 23198 258824 87608 0 2 0 syz-executor 23198 472170 87608 0 3 0x4000080 fsleep syz-executor 10102 305893 0 0 3 0x14280 nfsidl nfsio 73639 307052 53057 0 2 0 syz-executor 73639 388684 53057 0 3 0x4000080 fsleep syz-executor 94694 435135 87610 -1 2 0x10 syz-executor 94694 408253 87610 -1 3 0x4000090 fsleep syz-executor 69990 426618 53076 0 2 0 syz-executor 69990 322662 53076 0 3 0x4000080 kqread syz-executor 69990 20582 53076 0 2 0x4000000 syz-executor 69990 444266 53076 0 3 0x4000080 fsleep syz-executor 350 162951 14529 0 2 0 syz-executor 350 207849 14529 0 3 0x4000080 kqsel syz-executor 350 168217 14529 0 3 0x4000080 fsleep syz-executor 350 398988 14529 0 3 0x4000080 fsleep syz-executor 56392 266257 48048 0 3 0x80 nanoslp syz-executor 56392 373116 48048 0 3 0x4000080 kqread syz-executor 56392 372279 48048 0 3 0x4000080 kqread syz-executor 56392 154742 48048 0 3 0x4000080 fsleep syz-executor 13457 486923 58143 0 2 0 syz-executor 13457 508247 58143 0 2 0x4000000 syz-executor 13457 410655 58143 0 3 0x4000080 sysctllk syz-executor 48048 120159 1260 0 3 0x82 nanoslp syz-executor 91375 328589 1 0 3 0x100083 ttyin getty 53076 404745 1260 0 3 0x82 nanoslp syz-executor 15296 478472 1260 0 2 0x2 syz-executor 14529 441958 1260 0 3 0x82 nanoslp syz-executor 58143 272830 1260 0 3 0x82 nanoslp syz-executor 87610 415404 1260 0 3 0x82 nanoslp syz-executor 87608 188086 1260 0 2 0x2 syz-executor 53057 338964 1260 0 3 0x82 nanoslp syz-executor 1260 126043 82115 0 3 0x82 kqread syz-executor 82115 445312 16921 0 3 0x10008a sigsusp ksh 16921 424098 54165 0 3 0x98 kqread sshd-session 54165 207321 50834 0 3 0x92 kqread sshd-session 50834 145786 1 0 3 0x88 kqread sshd 54938 385521 86208 73 3 0x1100090 kqread syslogd 86208 469789 1 0 3 0x100082 sbwait syslogd 80912 341490 1 0 3 0x100080 kqread resolvd 10546 361739 49339 77 3 0x100092 kqread dhcpleased 20861 200574 49339 77 3 0x100092 kqread dhcpleased 49339 55233 1 0 3 0x80 kqread dhcpleased 60391 19025 0 0 3 0x14200 bored smr 2564 288906 0 0 2 0x14200 zerothread 8963 442993 0 0 3 0x14200 aiodoned aiodoned 52822 477399 0 0 3 0x14200 syncer update 62514 423437 0 0 3 0x14200 cleaner cleaner *25292 328607 0 0 7 0x14200 reaper 23999 391849 0 0 3 0x14200 pgdaemon pagedaemon 6504 354949 0 0 3 0x14200 bored viomb 32396 349785 0 0 3 0x40014200 acpi0 acpi0 21700 187082 0 0 3 0x14200 bored softnet0 57921 125997 0 0 3 0x14200 bored systqmp 61302 489926 0 0 3 0x14200 bored systq 24825 187309 0 0 3 0x40014200 tmoslp softclock 65070 96136 0 0 3 0x40014200 idle0 1 57899 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 10181 11110K 12161K 166960K 12393 0 pcb 17 13K 13K 166960K 117 0 rtable 237 8K 9K 166960K 521 0 pf 33 13K 14K 166960K 65 0 ifaddr 44 7K 7K 166960K 67 0 ifgroup 55 2K 2K 166960K 96 0 sysctl 4 1K 9K 166960K 11 0 counters 34 17K 18K 166960K 52 0 ioctlops 0 0K 4K 166960K 146 0 iov 0 0K 40K 166960K 23 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1530 96K 96K 166960K 1942 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 5 0 VM map 2 1K 1K 166960K 2 0 sem 7 16K 16K 166960K 12 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 236K 166960K 502 0 sigio 0 0K 0K 166960K 12 0 proc 60 59K 83K 166960K 549 0 subproc 72 4K 4K 166960K 83 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 58 0 in_multi 102 7K 7K 166960K 131 0 ether_multi 1 0K 0K 166960K 2 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 79 360K 360K 166960K 79 0 exec 0 0K 1K 166960K 458 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 231 151K 171K 166960K 6284 0 UVM aobj 11 2K 2K 166960K 12 0 pinsyscall 38 76K 90K 166960K 1587 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 31 0 NDP 12 0K 2K 166960K 42 0 temp 44 8644K 8708K 166960K 12227 0 kqueue 20 30K 32K 166960K 114 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 120 103 0 99 1 0 1 1 0 8 0 rtentry 136 135 0 33 4 0 4 4 0 8 0 unpcb 144 210 0 191 1 0 1 1 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 169 0 165 7 0 7 7 0 8 6 arp 96 21 0 2 1 0 1 1 0 8 0 ipq 40 1 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 1 1 0 1 1 0 8 0 inpcb 328 447 0 440 8 1 7 7 0 8 6 ip6q 72 3 0 0 1 0 1 1 0 8 0 ip6af 40 3 0 1 1 0 1 1 0 8 0 nd6 112 32 0 7 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 2 0 2 2 1 1 1 0 8 1 ppxss 1072 14 0 12 1 0 1 1 0 8 0 pppxif 1384 3 0 3 2 1 1 1 0 8 1 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 584 0 136 30 0 30 30 0 8 1 art_table 40 586 0 136 5 0 5 5 0 8 0 art_node 32 135 0 43 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 3 1 0 1 1 0 8 1 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 8 0 3 1 0 1 1 0 8 0 shmpl 112 9 0 1 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2242 0 738 95 0 95 95 0 8 0 ffsino 256 2242 0 738 95 0 95 95 0 8 0 nchpl 144 2922 0 1224 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 0 1 1 0 8 1 vnodes 216 2755 0 0 154 0 154 154 0 8 0 namei 1024 10007 0 10007 3 2 1 2 0 8 1 kstatmem 264 48 0 24 2 0 2 2 0 8 0 scsiplug 72 4 0 4 2 1 1 1 0 8 1 scxspl 216 9088 0 9088 9 1 8 8 1 8 8 plimitpl 152 153 0 136 1 0 1 1 0 8 0 sigapl 424 775 0 732 6 1 5 6 0 8 0 knotepl 120 17939 0 17880 18 8 10 17 0 8 7 kqueuepl 184 209 0 193 4 0 4 4 0 8 3 pipepl 304 167 0 140 3 0 3 3 0 8 0 fdescpl 448 761 0 732 4 0 4 4 0 8 0 filepl 120 4329 0 4105 12 1 11 11 0 8 2 lockfpl 104 254 0 251 2 0 2 2 0 8 1 lockfspl 48 125 0 122 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 33 0 17 1 0 1 1 0 8 0 ucredpl 104 450 0 438 1 0 1 1 0 8 0 zombiepl 144 966 0 966 1 0 1 1 0 8 1 processpl 1152 775 0 732 4 0 4 4 0 8 0 procpl 664 1411 0 1354 6 0 6 6 0 8 0 sosppl 176 2 0 2 1 0 1 1 0 8 1 sockpl 552 783 0 753 7 0 7 7 0 8 4 mcl64k 65536 77 0 76 3 1 2 2 0 8 1 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 11 0 11 2 1 1 1 0 8 1 mcl4k 4096 2902 0 2851 16 8 8 15 0 8 0 mcl2k 2048 854 0 850 3 1 2 2 0 8 1 mtagpl 96 6 0 5 2 1 1 1 0 8 0 mbufpl 256 8086 0 7895 16 0 16 16 0 8 0 bufpl 280 2921 0 122 200 0 200 200 0 8 0 anonpl 24 132016 0 128402 44 11 33 33 0 187 8 amapchunkpl 152 20315 0 19838 38 4 34 34 0 158 12 amappl16 200 2063 0 2003 7 3 4 5 0 8 0 amappl15 192 8 0 8 1 1 0 1 0 8 0 amappl14 184 9 0 9 2 1 1 1 0 8 1 amappl13 176 415 0 414 1 0 1 1 0 8 0 amappl12 168 1126 0 1087 2 0 2 2 0 8 0 amappl11 160 5 0 5 1 1 0 1 0 8 0 amappl10 152 48 0 38 1 0 1 1 0 8 0 amappl9 144 255 0 255 1 1 0 1 0 8 0 amappl8 136 29 0 28 1 0 1 1 0 8 0 amappl7 128 83 0 82 1 0 1 1 0 8 0 amappl6 120 290 0 279 1 0 1 1 0 8 0 amappl5 112 69 0 62 1 0 1 1 0 8 0 amappl4 104 391 0 367 1 0 1 1 0 8 0 amappl3 96 3320 0 3232 3 0 3 3 0 8 0 amappl2 88 874 0 803 2 0 2 2 0 8 0 amappl1 80 10244 0 9699 13 1 12 13 0 8 0 amappl 88 5516 0 5353 5 0 5 5 0 92 0 uvmvnodes 80 2755 0 0 57 0 57 57 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 128 255 0 255 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 11 0 1 1 0 1 1 0 8 0 uaddrrnd 24 761 0 732 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 761 0 732 1 0 1 1 0 8 0 vmmpekpl 168 7893 0 7857 3 0 3 3 0 8 0 vmmpepl 168 54811 0 52986 84 1 83 83 0 357 0 vmsppl 368 760 0 732 4 1 3 4 0 8 0 rwobjpl 40 19786 0 16150 37 0 37 37 0 8 0 pdppl 4096 1529 0 1464 101 34 67 77 0 8 2 pvpl 32 343830 0 333717 117 19 98 101 0 265 13 pmappl 216 760 0 732 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 390 0 52 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(deafbeaddeafbf8d) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deafbeaddeafbead,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(deafbeaddeafbf8d) at mtx_enter+0x6e sys/kern/kern_lock.c:335 prsignal(deafbeaddeafbead,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