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(ffff80002a73d4c0) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a773c00 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0xffffffff837cbff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a73d400 r8 0xffffffffffffffff r9 0 r10 0x9f44b00f24d45f71 r11 0x30fe373277a7c877 r12 0xdeaf4152deaf4152 r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeaf4152deaf4232 r15 0 rip 0xffffffff82e3121e mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a773bd0 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=94759 pid=10191 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=0xffff80002a73d228,0xffff80002a73d768 process=0xffff8000ffffdb00 user=0xffff80002a76e000, vmspace=0xffffffff8393fe40 estcpu=0, cpticks=10, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 5832 316658 0 0 3 0x14280 nfsidl nfsio 35180 229007 41630 0 2 0 syz-executor 35180 228299 41630 0 3 0x4000080 fsleep syz-executor 113 275196 13716 0 2 0 syz-executor 113 317045 13716 0 3 0x4000080 fsleep syz-executor 46150 149692 66470 0 2 0 syz-executor 46150 335358 66470 0 3 0x4000080 fsleep syz-executor 53437 180013 77966 0 2 0 syz-executor 53437 143546 77966 0 3 0x4000080 fsleep syz-executor 13675 123867 42556 0 2 0 syz-executor 13675 54326 42556 0 2 0x4000000 syz-executor 13675 170863 42556 0 3 0x4000000 inode syz-executor 13675 416500 42556 0 3 0x4000080 fsleep syz-executor 81973 412619 13944 0 2 0 syz-executor 81973 119293 13944 0 3 0x4000080 fsleep syz-executor 98027 448805 13219 0 3 0x80 nanoslp syz-executor 98027 472773 13219 0 2 0x4000000 syz-executor 98027 91690 13219 0 2 0x4000000 syz-executor 98027 399803 13219 0 3 0x4000080 sysctllk syz-executor 34490 465165 0 0 3 0x14200 acct acct 77966 462366 59586 0 2 0x3 syz-executor 42556 161312 59586 0 2 0x3 syz-executor 41630 64400 59586 0 2 0x3 syz-executor 7593 178762 59586 0 2 0x3 syz-executor 13944 447583 59586 0 3 0x82 nanoslp syz-executor 66470 519816 59586 0 2 0x3 syz-executor 13219 506117 59586 0 3 0x82 nanoslp syz-executor 13716 110605 59586 0 2 0x3 syz-executor 59586 243817 49593 0 3 0x82 kqread syz-executor 49593 317291 50785 0 3 0x10008a sigsusp ksh 50785 318355 2448 0 3 0x98 kqread sshd-session 2448 312471 72573 0 3 0x92 kqread sshd-session 31279 20891 1 0 3 0x100083 ttyin getty 72573 196137 1 0 3 0x88 kqread sshd 97943 506526 84008 73 3 0x1100090 kqread syslogd 84008 485860 1 0 3 0x100082 sbwait syslogd 24808 130679 1 0 3 0x100080 kqread resolvd 75373 176981 89576 77 3 0x100092 kqread dhcpleased 11610 34778 89576 77 3 0x100092 kqread dhcpleased 89576 90885 1 0 3 0x80 kqread dhcpleased 84187 116026 0 0 3 0x14200 bored smr 32317 195700 0 0 2 0x14200 zerothread 19271 304474 0 0 3 0x14200 aiodoned aiodoned 18089 493910 0 0 3 0x14200 syncer update 44301 364305 0 0 3 0x14200 cleaner cleaner *10191 94759 0 0 7 0x14200 reaper 21718 238944 0 0 3 0x14200 pgdaemon pagedaemon 76417 21803 0 0 3 0x14200 bored viomb 45034 182406 0 0 3 0x40014200 acpi0 acpi0 28632 283246 0 0 3 0x14200 bored softnet0 18806 71549 0 0 3 0x14200 bored systqmp 74226 425690 0 0 3 0x14200 bored systq 35589 122416 0 0 3 0x40014200 tmoslp softclock 56964 470629 0 0 3 0x40014200 idle0 1 144217 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 10178 11054K 11696K 166960K 13071 0 pcb 20 16K 17K 166960K 394 0 rtable 218 11K 11K 166960K 649 0 pf 33 13K 67481K 166960K 121 0 ifaddr 36 6K 8K 166960K 87 0 ifgroup 46 2K 2K 166960K 132 0 sysctl 3 1K 9K 166960K 13 0 counters 31 17K 18K 166960K 83 0 ioctlops 0 0K 4K 166960K 159 0 iov 0 0K 16K 166960K 48 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1461 92K 93K 166960K 2391 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 14 0 VM map 2 1K 1K 166960K 2 0 sem 21 5K 5K 166960K 28 0 dirhash 12 2K 2K 166960K 36 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 972 0 sigio 0 0K 0K 166960K 16 0 proc 62 67K 108K 166960K 580 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 96 0 in_multi 83 6K 7K 166960K 144 0 ether_multi 1 0K 0K 166960K 9 0 mrt 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 103 466K 466K 166960K 103 0 exec 0 0K 1K 166960K 499 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 232 151K 165K 166960K 10720 0 UVM aobj 89 3K 3K 166960K 92 0 pinsyscall 38 76K 94K 166960K 2076 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 47 0 NDP 10 0K 2K 166960K 58 0 temp 76 8652K 8720K 166960K 36035 0 kqueue 16 22K 32K 166960K 199 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 120 124 0 119 1 0 1 1 0 8 0 rtentry 136 146 0 62 4 0 4 4 0 8 0 unpcb 144 813 0 798 11 5 6 6 0 8 5 syncache 336 7 0 7 2 1 1 1 0 8 1 tcpcb 736 308 0 304 4 0 4 4 0 8 3 arp 96 26 0 9 1 0 1 1 0 8 0 ipq 40 4 0 4 1 0 1 1 0 8 1 ipqe 40 5 0 5 1 0 1 1 0 8 1 inpcb 328 1024 0 1013 11 4 7 7 0 8 5 ip6q 72 4 0 1 1 0 1 1 0 8 0 ip6af 40 5 0 2 1 0 1 1 0 8 0 nd6 112 29 0 9 1 0 1 1 0 8 0 pkpcb 40 12 0 12 2 1 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 43 0 43 1 0 1 1 0 8 1 pppxif 1384 4 0 4 2 1 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfrktable 1344 1 0 0 1 0 1 1 0 8 0 pfstitem 24 7 0 2 1 0 1 1 0 8 0 pfstkey 128 13 0 8 1 0 1 1 0 8 0 pfstate 384 7 0 4 1 0 1 1 0 8 0 pfrule 1344 16 0 5 2 0 2 2 0 8 1 art_heap8 4096 4 0 0 4 0 4 4 0 8 0 art_heap4 256 596 0 247 30 0 30 30 0 8 5 art_table 40 600 0 247 5 0 5 5 0 8 0 art_node 32 145 0 70 1 0 1 1 0 8 0 sysvmsgpl 40 3 0 2 1 0 1 1 0 8 0 semapl 112 23 0 4 1 0 1 1 0 8 0 shmpl 112 89 0 3 3 0 3 3 0 8 0 dirhash 1024 33 0 16 3 0 3 3 0 8 0 dino2pl 256 3193 0 1697 95 0 95 95 0 8 0 ffsino 256 3193 0 1697 95 0 95 95 0 8 0 nchpl 144 4525 0 2833 64 0 64 64 0 8 0 rtmask 32 9 0 9 1 1 0 1 0 8 0 vnodes 216 3960 0 0 220 0 220 220 0 8 0 namei 1024 14944 0 14942 4 2 2 2 0 8 1 kstatmem 264 80 0 60 2 0 2 2 0 8 0 scsiplug 72 7 0 7 2 1 1 1 0 8 1 scxspl 216 14965 0 14965 9 1 8 8 1 8 8 plimitpl 152 265 0 249 1 0 1 1 0 8 0 sigapl 424 1283 0 1239 8 0 8 8 0 8 2 knotepl 120 50373 0 50322 11 1 10 10 0 8 8 kqueuepl 184 423 0 412 4 0 4 4 0 8 3 pipepl 304 255 0 228 3 0 3 3 0 8 0 fdescpl 448 1246 0 1217 5 1 4 5 0 8 0 filepl 120 7745 0 7530 15 4 11 11 0 8 4 lockfpl 104 531 0 529 2 1 1 2 0 8 0 lockfspl 48 202 0 200 1 0 1 1 0 8 0 sessionpl 144 22 0 14 1 0 1 1 0 8 0 pgrppl 48 41 0 25 1 0 1 1 0 8 0 ucredpl 104 962 0 950 1 0 1 1 0 8 0 zombiepl 144 1645 0 1645 2 1 1 1 0 8 1 processpl 1152 1283 0 1239 5 0 5 5 0 8 0 procpl 664 2778 0 2723 8 0 8 8 0 8 2 sosppl 176 3 0 3 2 1 1 1 0 8 1 sockpl 552 2008 0 1977 21 11 10 12 0 8 7 mcl64k 65536 182 0 180 2 1 1 1 0 8 0 mcl16k 16384 14 0 14 2 1 1 1 0 8 1 mcl8k 8192 19 0 19 2 1 1 1 0 8 1 mcl4k 4096 3683 0 3632 15 7 8 15 0 8 1 mcl2k 2048 1512 0 1510 8 3 5 5 0 8 4 mtagpl 96 12 0 7 1 0 1 1 0 8 0 mbufpl 256 99469 0 99298 119 101 18 116 0 8 4 bufpl 280 6143 0 121 431 0 431 431 0 8 0 anonpl 24 196631 0 192569 81 33 48 60 0 187 20 amapchunkpl 152 35209 0 34707 34 6 28 28 0 158 6 amappl16 200 3632 0 3566 29 17 12 15 0 8 8 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 6 0 6 1 1 0 1 0 8 0 amappl13 176 421 0 420 1 0 1 1 0 8 0 amappl12 168 1595 0 1557 2 0 2 2 0 8 0 amappl11 160 14 0 14 1 1 0 1 0 8 0 amappl10 152 56 0 46 1 0 1 1 0 8 0 amappl9 144 260 0 260 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 85 0 83 1 0 1 1 0 8 0 amappl6 120 275 0 263 1 0 1 1 0 8 0 amappl5 112 87 0 79 1 0 1 1 0 8 0 amappl4 104 393 0 370 1 0 1 1 0 8 0 amappl3 96 6163 0 6075 3 0 3 3 0 8 0 amappl2 88 1362 0 1291 2 0 2 2 0 8 0 amappl1 80 12310 0 11772 13 1 12 13 0 8 0 amappl 88 9868 0 9705 5 0 5 5 0 92 0 uvmvnodes 80 3960 0 0 81 0 81 81 0 8 0 dma65536 65536 1 0 1 1 0 1 1 0 8 1 dma32768 32768 1 0 1 1 0 1 1 0 8 1 dma4096 4096 2 0 2 1 1 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 128 255 0 255 2 1 1 1 0 8 1 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 18 0 17 1 0 1 1 0 8 0 aobjpl 72 91 0 3 2 0 2 2 0 8 0 uaddrrnd 24 1246 0 1217 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1246 0 1217 1 0 1 1 0 8 0 vmmpekpl 168 11498 0 11454 3 0 3 3 0 8 0 vmmpepl 168 84543 0 82714 103 11 92 93 0 357 9 vmsppl 368 1245 0 1217 4 1 3 4 0 8 0 rwobjpl 40 27877 0 22953 51 1 50 50 0 8 0 pdppl 4096 2499 0 2434 115 48 67 83 0 8 2 pvpl 32 545243 0 535702 151 40 111 130 0 265 22 pmappl 216 1245 0 1217 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 516 0 170 13 1 12 13 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(ffff80002a73d4c0) 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(ffff80002a73d4c0) at reaper+0x29c sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3