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(deaf4152deaf4232) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(deaf4152deaf4152,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72d4c0) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a763ea0 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0xffffffff83843ff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a72d400 r8 0xffffffffffffffff r9 0 r10 0x5f9483e957a533bf r11 0xc5b6c31281360f17 r12 0xdeaf4152deaf4152 r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeaf4152deaf4232 r15 0 rip 0xffffffff81768cee mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a763e70 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%r15 ddb> show proc PROC (reaper) tid=194922 pid=30845 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=0xffff80002a72cf90,0xffff80002a72d768 process=0xffff8000ffffd200 user=0xffff80002a75e000, vmspace=0xffffffff839beca0 estcpu=0, cpticks=3, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 309 175322 0 0 3 0x14280 nfsidl nfsio 78910 214764 82263 0 2 0 syz-executor 78910 5185 82263 0 3 0x4000080 fsleep syz-executor 70902 28939 0 0 3 0x14280 nfsidl nfsio 78293 111832 93493 0 2 0 syz-executor 78293 356488 93493 0 3 0x4000080 fsleep syz-executor 78293 52781 93493 0 3 0x4000080 fsleep syz-executor 78293 467120 93493 0 3 0x4000080 fsleep syz-executor 93704 250503 84048 0 2 0 syz-executor 93704 416100 84048 0 2 0x4000000 syz-executor 93704 391058 84048 0 3 0x4000080 fsleep syz-executor 93704 423550 84048 0 3 0x4000080 fsleep syz-executor 8231 205068 56512 0 2 0 syz-executor 8231 462209 56512 0 3 0x4000080 fifor syz-executor 8231 67618 56512 0 3 0x4000080 fifor syz-executor 8231 31099 56512 0 3 0x4000080 fsleep syz-executor 8231 320202 56512 0 3 0x4000080 fsleep syz-executor 26579 78929 35013 0 2 0 syz-executor 26579 80375 35013 0 3 0x4000080 fsleep syz-executor 26579 173582 35013 0 3 0x4000080 fsleep syz-executor 26579 35727 35013 0 3 0x4000080 fsleep syz-executor 45162 49978 83842 0 2 0 syz-executor 45162 378275 83842 0 2 0x4000000 syz-executor 45162 40310 83842 0 3 0x4000080 sysctllk syz-executor 45162 97722 83842 0 3 0x4000080 fsleep syz-executor 5244 222759 39737 0 2 0x2 syz-executor 82263 357646 39737 0 3 0x82 nanoslp syz-executor 91552 369216 39737 0 3 0x82 nanoslp syz-executor 93493 62424 39737 0 3 0x82 nanoslp syz-executor 56512 470020 39737 0 3 0x82 nanoslp syz-executor 83842 340146 39737 0 3 0x82 nanoslp syz-executor 84048 71274 39737 0 3 0x82 nanoslp syz-executor 35013 11209 39737 0 3 0x82 nanoslp syz-executor 39737 102948 40760 0 3 0x82 kqread syz-executor 40760 277255 89251 0 3 0x10008a sigsusp ksh 89251 365819 80197 0 3 0x98 kqread sshd-session 80197 164974 4723 0 3 0x92 kqread sshd-session 37847 129721 1 0 3 0x100083 ttyin getty 4723 477731 1 0 3 0x88 kqread sshd 29213 44805 63078 73 3 0x1100090 kqread syslogd 63078 130773 1 0 3 0x100082 sbwait syslogd 51813 171493 1 0 3 0x100080 kqread resolvd 73693 392935 41772 77 3 0x100092 kqread dhcpleased 64204 289053 41772 77 3 0x100092 kqread dhcpleased 41772 85905 1 0 3 0x80 kqread dhcpleased 92812 493738 0 0 3 0x14200 bored smr 98413 415823 0 0 2 0x14200 zerothread 93865 96209 0 0 3 0x14200 aiodoned aiodoned 64195 213037 0 0 3 0x14200 syncer update 7281 269064 0 0 3 0x14200 cleaner cleaner *30845 194922 0 0 7 0x14200 reaper 79973 194659 0 0 3 0x14200 pgdaemon pagedaemon 28850 162004 0 0 3 0x14200 bored viomb 6452 121232 0 0 3 0x40014200 acpi0 acpi0 89888 285308 0 0 3 0x14200 bored softnet0 48173 387893 0 0 3 0x14200 bored systqmp 71024 271011 0 0 3 0x14200 bored systq 36761 464766 0 0 3 0x40014200 tmoslp softclock 27572 34915 0 0 3 0x40014200 idle0 1 489587 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 11055 12262K 12660K 166960K 13187 0 pcb 17 12K 16K 166960K 133 0 rtable 217 7K 8K 166960K 479 0 pf 34 13K 15K 166960K 62 0 ifaddr 39 6K 7K 166960K 67 0 ifgroup 58 2K 2K 166960K 100 0 sysctl 4 1K 9K 166960K 8 0 counters 35 18K 18K 166960K 52 0 ioctlops 0 0K 4K 166960K 87 0 iov 0 0K 16K 166960K 26 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1409 89K 89K 166960K 1770 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 6 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 18 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 529 0 sigio 0 0K 0K 166960K 3 0 proc 63 67K 100K 166960K 519 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 178 0 in_multi 81 6K 7K 166960K 121 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 5 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 460 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 254 147K 160K 166960K 6468 0 UVM aobj 48 10K 10K 166960K 49 0 pinsyscall 38 76K 94K 166960K 1587 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 31 0 NDP 13 0K 2K 166960K 40 0 temp 54 8666K 8733K 166960K 10381 0 kqueue 17 24K 26K 166960K 80 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 65 0 60 1 0 1 1 0 8 0 rtentry 136 129 0 45 4 0 4 4 0 8 0 unpcb 144 399 0 380 7 1 6 6 0 8 5 syncache 336 5 0 5 1 1 0 1 0 8 0 tcpcb 736 105 0 100 2 0 2 2 0 8 1 arp 96 18 0 4 1 0 1 1 0 8 0 ipq 40 6 0 1 1 0 1 1 0 8 0 ipqe 40 7 0 2 1 0 1 1 0 8 0 inpcb 328 492 0 481 5 1 4 5 0 8 3 ip6q 72 1 0 0 1 0 1 1 0 8 0 ip6af 40 1 0 0 1 0 1 1 0 8 0 nd6 112 26 0 7 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 9 0 9 2 1 1 1 0 8 1 pppxif 1384 7 0 7 2 1 1 1 0 8 1 rttmr 136 2 0 2 1 1 0 1 0 8 0 art_heap8 4096 4 0 1 4 0 4 4 0 8 1 art_heap4 256 620 0 248 31 2 29 31 0 8 1 art_table 40 624 0 249 5 0 5 5 0 8 0 art_node 32 129 0 53 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 8 1 0 1 1 0 8 0 semapl 112 15 0 5 1 0 1 1 0 8 0 shmpl 112 42 0 0 2 0 2 2 0 8 0 dirhash 1024 22 0 5 3 0 3 3 0 8 0 dino2pl 256 2273 0 769 95 0 95 95 0 8 0 ffsino 256 2273 0 769 95 0 95 95 0 8 0 nchpl 144 2989 0 1294 64 0 64 64 0 8 0 vnodes 216 2564 0 0 143 0 143 143 0 8 0 namei 1024 9875 0 9874 3 2 1 2 0 8 0 vcpupl 3904 3 0 0 1 0 1 1 0 8 0 vmpool 808 4 0 1 1 0 1 1 0 8 0 kstatmem 264 46 0 20 3 1 2 3 0 8 0 scxspl 216 11400 0 11400 9 1 8 8 1 8 8 plimitpl 152 198 0 182 1 0 1 1 0 8 0 sigapl 424 804 0 760 6 1 5 6 0 8 0 knotepl 120 17130 0 17074 17 8 9 10 0 8 7 kqueuepl 184 140 0 128 1 0 1 1 0 8 0 pipepl 304 174 0 147 5 2 3 5 0 8 0 fdescpl 448 789 0 760 5 1 4 5 0 8 0 filepl 120 4477 0 4254 12 1 11 11 0 8 4 lockfpl 104 135 0 133 1 0 1 1 0 8 0 lockfspl 48 58 0 56 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 38 0 22 1 0 1 1 0 8 0 ucredpl 104 529 0 518 1 0 1 1 0 8 0 zombiepl 144 909 0 908 2 1 1 1 0 8 0 processpl 1152 804 0 760 4 0 4 4 0 8 0 procpl 664 1490 0 1429 9 1 8 8 0 8 2 sosppl 176 5 0 5 2 1 1 1 0 8 1 sockpl 552 1003 0 968 15 5 10 12 0 8 7 mcl64k 65536 54 0 54 2 1 1 1 0 8 1 mcl9k 9216 1 0 1 1 1 0 1 0 8 0 mcl8k 8192 10 0 10 2 1 1 1 0 8 1 mcl4k 4096 2965 0 2912 15 7 8 15 0 8 1 mcl2k 2048 897 0 892 4 2 2 3 0 8 1 mtagpl 96 12 0 6 1 0 1 1 0 8 0 mbufpl 256 8492 0 8304 13 0 13 13 0 8 0 bufpl 280 4005 0 124 278 0 278 278 0 8 0 anonpl 24 139823 0 135659 46 6 40 46 0 187 0 amapchunkpl 152 20131 0 19547 30 5 25 26 0 158 0 amappl16 200 2552 0 2491 15 7 8 15 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 24 0 24 1 1 0 1 0 8 0 amappl13 176 400 0 399 1 0 1 1 0 8 0 amappl12 168 1129 0 1090 2 0 2 2 0 8 0 amappl11 160 3 0 3 1 1 0 1 0 8 0 amappl10 152 79 0 69 1 0 1 1 0 8 0 amappl9 144 311 0 311 1 1 0 1 0 8 0 amappl8 136 71 0 70 1 0 1 1 0 8 0 amappl7 128 84 0 83 1 0 1 1 0 8 0 amappl6 120 258 0 247 1 0 1 1 0 8 0 amappl5 112 67 0 60 1 0 1 1 0 8 0 amappl4 104 404 0 379 1 0 1 1 0 8 0 amappl3 96 3457 0 3354 3 0 3 3 0 8 0 amappl2 88 928 0 858 2 0 2 2 0 8 0 amappl1 80 10956 0 10412 15 0 15 15 0 8 0 amappl 88 5707 0 5521 5 0 5 5 0 92 0 uvmvnodes 80 108 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 dma512 512 1 0 1 1 0 1 1 0 8 1 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 48 0 1 1 0 1 1 0 8 0 uaddrrnd 24 789 0 760 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 789 0 760 1 0 1 1 0 8 0 vmmpekpl 168 8239 0 8205 2 0 2 2 0 8 0 vmmpepl 168 57860 0 55995 94 9 85 92 0 357 0 vmsppl 368 788 0 760 4 1 3 4 0 8 0 rwobjpl 40 18315 0 17244 13 0 13 13 0 8 0 pdppl 4096 1593 0 1525 108 38 70 81 0 8 2 pvpl 32 368024 0 356442 123 26 97 123 0 265 1 pmappl 216 792 0 761 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 392 0 58 10 0 10 10 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(deaf4152deaf4232) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(deaf4152deaf4152,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72d4c0) 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(deaf4152deaf4232) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(deaf4152deaf4152,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72d4c0) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3