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 0xffff80002a773330 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0xffffffff8377cff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a73d700 r8 0x9 r9 0 r10 0xc0d95fbd8563b237 r11 0xabe23a68aa984777 r12 0xdeafbeaddeafbead r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdeafbeaddeafbf8d r15 0 rip 0xffffffff82dcc79e mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a773300 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%rax ddb> show proc PROC (reaper) tid=405379 pid=14331 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=0xffff8000ffffd200 user=0xffff80002a76e000, vmspace=0xffffffff83986ec0 estcpu=0, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 52192 238972 0 0 3 0x14280 nfsidl nfsio 60515 18221 82550 0 2 0 syz-executor 60515 394624 82550 0 2 0x4000000 syz-executor 63192 441523 0 0 3 0x14280 nfsidl nfsio 72882 484629 0 0 3 0x14280 nfsidl nfsio 94733 390742 8668 0 2 0 syz-executor 94733 291601 8668 0 3 0x4000080 sysctllk syz-executor 1601 294842 0 0 3 0x14280 nfsidl nfsio 98015 108531 37006 -1 2 0x10 syz-executor 98015 352953 37006 -1 3 0x4000090 fsleep syz-executor 71332 359610 64365 0 2 0 syz-executor 71332 332292 64365 0 3 0x4000080 fsleep syz-executor 83781 166764 85622 0 2 0 syz-executor 83781 147844 85622 0 3 0x4000080 fsleep syz-executor 83781 158784 85622 0 3 0x4000080 fsleep syz-executor 8896 462103 77356 0 2 0 syz-executor 8896 240976 77356 0 2 0x4000000 syz-executor 8896 399340 77356 0 2 0x4000080 syz-executor 82550 433681 56366 0 3 0x82 nanoslp syz-executor 18987 478533 1 0 3 0x100083 ttyin getty 8668 487190 56366 0 3 0x82 nanoslp syz-executor 49044 80231 56366 0 3 0x82 wait syz-executor 85622 170473 56366 0 3 0x82 nanoslp syz-executor 64365 266684 56366 0 3 0x82 nanoslp syz-executor 37006 6146 56366 0 3 0x82 nanoslp syz-executor 36120 441493 56366 0 2 0x2 syz-executor 77356 171232 56366 0 3 0x82 nanoslp syz-executor 56366 111573 67163 0 3 0x82 kqread syz-executor 67163 41076 33061 0 3 0x10008a sigsusp ksh 33061 253414 46725 0 3 0x98 kqread sshd-session 46725 485357 56724 0 3 0x92 kqread sshd-session 56724 302033 1 0 3 0x88 kqread sshd 39096 140105 1697 73 3 0x1100090 kqread syslogd 1697 39027 1 0 3 0x100082 sbwait syslogd 51267 247469 1 0 3 0x100080 kqread resolvd 30294 29978 4113 77 3 0x100092 kqread dhcpleased 2161 390637 4113 77 3 0x100092 kqread dhcpleased 4113 170824 1 0 3 0x80 kqread dhcpleased 28504 360255 0 0 3 0x14200 bored smr 31467 39783 0 0 2 0x14200 zerothread 40466 408307 0 0 3 0x14200 aiodoned aiodoned 69465 339580 0 0 3 0x14200 syncer update 37243 458904 0 0 3 0x14200 cleaner cleaner *14331 405379 0 0 7 0x14200 reaper 23400 281720 0 0 3 0x14200 pgdaemon pagedaemon 22429 232005 0 0 3 0x14200 bored viomb 20096 19227 0 0 3 0x40014200 acpi0 acpi0 71260 301637 0 0 2 0x14200 softnet0 78733 373251 0 0 3 0x14200 bored systqmp 93491 175286 0 0 3 0x14200 bored systq 64595 408083 0 0 3 0x40014200 tmoslp softclock 64508 127427 0 0 3 0x40014200 idle0 1 37738 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 10213 11206K 11562K 166960K 13031 0 pcb 17 14K 16K 166960K 390 0 rtable 224 10K 10K 166960K 600 0 pf 32 13K 14K 166960K 105 0 ifaddr 39 6K 7K 166960K 95 0 ifgroup 54 2K 2K 166960K 126 0 sysctl 4 1K 9K 166960K 12 0 counters 33 17K 18K 166960K 90 0 ioctlops 0 0K 4K 166960K 212 0 iov 0 0K 17K 166960K 80 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1473 93K 93K 166960K 2435 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 15 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 87 0 dirhash 12 2K 2K 166960K 27 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 983 0 sigio 0 0K 0K 166960K 76 0 proc 60 59K 100K 166960K 636 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 0 0K 0K 166960K 126 0 in_multi 87 6K 7K 166960K 160 0 ether_multi 1 0K 0K 166960K 13 0 mrt 2 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 187 837K 837K 166960K 187 0 exec 0 0K 1K 166960K 540 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 2 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 235 143K 159K 166960K 10413 0 UVM aobj 26 2K 2K 166960K 30 0 pinsyscall 38 76K 92K 166960K 2061 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 50 0 NDP 12 0K 2K 166960K 63 0 temp 54 8646K 8714K 166960K 29640 0 kqueue 17 24K 32K 166960K 217 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 120 100 0 96 1 0 1 1 0 8 0 rtentry 136 155 0 68 4 0 4 4 0 8 0 unpcb 144 762 0 745 6 5 1 6 0 8 0 syncache 336 3 0 3 1 1 0 1 0 8 0 tcpcb 736 345 0 341 7 6 1 7 0 8 0 arp 96 21 0 7 1 0 1 1 0 8 0 ipq 40 4 0 0 1 0 1 1 0 8 0 ipqe 40 4 0 0 1 0 1 1 0 8 0 inpcb 328 1060 0 1052 17 10 7 12 0 8 6 ip6q 72 3 0 1 1 0 1 1 0 8 0 ip6af 40 5 0 2 1 0 1 1 0 8 0 nd6 112 34 0 10 1 0 1 1 0 8 0 pkpcb 40 5 0 5 2 1 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1072 54 0 54 2 1 1 1 0 8 1 pppxif 1384 2 0 2 1 1 0 1 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfrule 1344 1 0 1 1 1 0 1 0 8 0 rttmr 136 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 826 0 347 35 5 30 30 0 8 0 art_table 40 828 0 347 5 0 5 5 0 8 0 art_node 32 154 0 75 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 8 1 0 1 1 0 8 0 semapl 112 85 0 75 1 0 1 1 0 8 0 shmpl 112 27 0 4 1 0 1 1 0 8 0 dirhash 1024 27 0 10 3 0 3 3 0 8 0 dino2pl 256 3239 0 1736 95 0 95 95 0 8 0 ffsino 256 3239 0 1736 95 0 95 95 0 8 0 nchpl 144 4621 0 2925 64 0 64 64 0 8 0 rtmask 32 9 0 9 2 1 1 1 0 8 1 vnodes 216 3980 0 0 222 0 222 222 0 8 0 namei 1024 16797 0 16797 3 2 1 2 0 8 1 kstatmem 264 88 0 64 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 5 0 5 1 1 0 1 0 8 0 scxspl 216 15571 0 15571 15 7 8 8 1 8 8 plimitpl 152 290 0 273 1 0 1 1 0 8 0 sigapl 424 1286 0 1240 9 3 6 8 0 8 0 knotepl 120 64634 0 64579 33 23 10 17 0 8 8 kqueuepl 184 405 0 393 5 3 2 4 0 8 1 pipepl 304 279 0 252 7 4 3 7 0 8 0 fdescpl 448 1249 0 1220 5 1 4 5 0 8 0 filepl 120 8691 0 8474 17 6 11 15 0 8 2 lockfpl 104 312 0 310 1 0 1 1 0 8 0 lockfspl 48 124 0 122 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 19 1 0 1 1 0 8 0 ucredpl 104 1398 0 1384 1 0 1 1 0 8 0 zombiepl 144 1476 0 1475 1 0 1 1 0 8 0 processpl 1152 1286 0 1240 5 1 4 5 0 8 0 procpl 664 2680 0 2625 7 1 6 7 0 8 1 sosppl 176 7 0 7 2 1 1 1 0 8 1 sockpl 552 1952 0 1922 21 13 8 12 0 8 5 mcl64k 65536 143 0 143 2 1 1 1 0 8 1 mcl16k 16384 3 0 3 1 1 0 1 0 8 0 mcl12k 12288 1 0 1 1 1 0 1 0 8 0 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 3596 0 3543 14 6 8 13 0 8 0 mcl2k2 2112 5 0 5 2 1 1 1 0 8 1 mcl2k 2048 1489 0 1481 5 3 2 5 0 8 0 mtagpl 96 19 0 11 1 0 1 1 0 8 0 mbufpl 256 16316 0 16131 188 111 77 77 0 8 62 bufpl 280 5866 0 120 411 0 411 411 0 8 0 anonpl 24 220426 0 216364 78 16 62 62 0 187 28 amapchunkpl 152 36674 0 36170 43 12 31 37 0 158 7 amappl16 200 4331 0 4274 41 30 11 15 0 8 7 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 176 412 0 410 1 0 1 1 0 8 0 amappl12 168 1591 0 1553 3 1 2 3 0 8 0 amappl11 160 7 0 7 1 1 0 1 0 8 0 amappl10 152 41 0 31 1 0 1 1 0 8 0 amappl9 144 251 0 251 1 1 0 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 82 0 81 1 0 1 1 0 8 0 amappl6 120 292 0 280 1 0 1 1 0 8 0 amappl5 112 68 0 61 1 0 1 1 0 8 0 amappl4 104 400 0 375 1 0 1 1 0 8 0 amappl3 96 6086 0 5998 3 0 3 3 0 8 0 amappl2 88 1358 0 1287 2 0 2 2 0 8 0 amappl1 80 12210 0 11676 13 1 12 13 0 8 0 amappl 88 9561 0 9393 5 0 5 5 0 92 0 uvmvnodes 80 3980 0 0 82 0 82 82 0 8 0 dma8192 8192 1 0 1 1 1 0 1 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 8 0 8 2 1 1 1 0 8 1 dma128 128 256 0 256 1 1 0 1 0 8 0 dma64 64 7 0 7 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 29 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1249 0 1220 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1249 0 1220 1 0 1 1 0 8 0 vmmpekpl 168 11443 0 11404 3 0 3 3 0 8 0 vmmpepl 168 84130 0 82310 100 8 92 92 0 357 10 vmsppl 368 1248 0 1220 4 1 3 4 0 8 0 rwobjpl 40 27986 0 23106 53 2 51 51 0 8 1 pdppl 4096 2504 0 2440 100 34 66 80 0 8 2 pvpl 32 570491 0 559844 149 13 136 136 0 265 39 pmappl 216 1248 0 1220 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 568 0 177 13 1 12 12 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