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(dead4110dead41f0) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(dead4110dead4110,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72c7c8) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3 ddb> show registers rdi 0 rsi 0 rbp 0xffff80002a7630c0 rbx 0x40000 acpi_pdirpa+0x2be71 rdx 0 rcx 0xffffffff8386dff0 cpu_info_full_primary+0x1ff0 rax 0xffff80002a72c700 r8 0xffffffffffffffff r9 0 r10 0xed91e7f1faa99cbf r11 0x314654e390d833b3 r12 0xdead4110dead4110 r13 0x40000 acpi_pdirpa+0x2be71 r14 0xdead4110dead41f0 r15 0 rip 0xffffffff8172252e mtx_enter+0x6e cs 0x8 rflags 0x10297 __ALIGN_SIZE+0xf297 rsp 0xffff80002a763090 ss 0x10 mtx_enter+0x6e: movq 0(%r14),%r15 ddb> show proc PROC (reaper) tid=374125 pid=68183 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=0xffff80002a72c530,0xffff80002a72cd08 process=0xffff8000ffffc000 user=0xffff80002a75e000, vmspace=0xffffffff8387b400 estcpu=0, cpticks=5, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 95596 465307 0 0 3 0x14280 nfsidl nfsio 47829 83730 73697 0 2 0 syz-executor 47829 88715 73697 0 3 0x4000080 fsleep syz-executor 49985 54167 27788 0 2 0 syz-executor 49985 364040 27788 0 3 0x4000080 fsleep syz-executor 31230 130150 27149 0 2 0 syz-executor 31230 51229 27149 0 3 0x4000080 fsleep syz-executor 49657 101138 77466 0 2 0 syz-executor 49657 339535 77466 0 3 0x4000080 fsleep syz-executor 49657 263946 77466 0 3 0x4000080 fsleep syz-executor 69090 114286 55863 0 2 0 syz-executor 69090 485650 55863 0 2 0x4000000 syz-executor 69090 16358 55863 0 3 0x4000080 fsleep syz-executor 45180 29702 21350 0 2 0 syz-executor 45180 127876 21350 0 3 0x4000080 fsleep syz-executor 45180 107939 21350 0 3 0x4000080 fsleep syz-executor 45180 194132 21350 0 3 0x4000080 fsleep syz-executor 69301 96347 94921 0 2 0 syz-executor 69301 464927 94921 0 3 0x4000080 fsleep syz-executor 69301 173547 94921 0 3 0x4000080 fsleep syz-executor 69301 71160 94921 0 3 0x4000080 fsleep syz-executor 4493 11229 9332 0 2 0x2 syz-executor 27149 430829 9332 0 3 0x82 nanoslp syz-executor 55863 51394 9332 0 3 0x82 nanoslp syz-executor 21350 69349 9332 0 3 0x82 nanoslp syz-executor 27788 421151 9332 0 3 0x82 nanoslp syz-executor 73697 96231 9332 0 3 0x82 nanoslp syz-executor 77466 404190 9332 0 3 0x82 nanoslp syz-executor 94921 116680 9332 0 3 0x82 nanoslp syz-executor 9332 448256 95343 0 3 0x82 kqread syz-executor 95343 342568 76749 0 3 0x10008a sigsusp ksh 76749 4013 9625 0 3 0x98 kqread sshd-session 9625 11249 95802 0 3 0x92 kqread sshd-session 52491 404759 1 0 3 0x100083 ttyin getty 95802 248076 1 0 3 0x88 kqread sshd 74046 429652 31224 73 3 0x1100090 kqread syslogd 31224 497494 1 0 3 0x100082 sbwait syslogd 35137 388149 1 0 3 0x100080 kqread resolvd 18003 227413 83529 77 3 0x100092 kqread dhcpleased 38432 501345 83529 77 3 0x100092 kqread dhcpleased 83529 187501 1 0 3 0x80 kqread dhcpleased 44638 223363 0 0 3 0x14200 bored smr 41954 476256 0 0 2 0x14200 zerothread 75254 237458 0 0 3 0x14200 aiodoned aiodoned 61474 192635 0 0 3 0x14200 syncer update 6305 310455 0 0 3 0x14200 cleaner cleaner *68183 374125 0 0 7 0x14200 reaper 15191 405617 0 0 3 0x14200 pgdaemon pagedaemon 34751 319333 0 0 3 0x14200 bored viomb 46807 266590 0 0 3 0x40014200 acpi0 acpi0 76687 151374 0 0 3 0x14200 bored softnet0 63058 450257 0 0 3 0x14200 bored systqmp 59553 441978 0 0 3 0x14200 bored systq 42170 259025 0 0 3 0x40014200 tmoslp softclock 59670 250518 0 0 3 0x40014200 idle0 1 206069 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 11064 12113K 12784K 166960K 13267 0 pcb 18 13K 14K 166960K 142 0 rtable 206 8K 8K 166960K 461 0 pf 30 12K 14K 166960K 68 0 ifaddr 36 6K 7K 166960K 69 0 ifgroup 50 2K 2K 166960K 103 0 sysctl 3 1K 9K 166960K 11 0 counters 33 17K 18K 166960K 58 0 ioctlops 0 0K 4K 166960K 239 0 iov 0 0K 20K 166960K 130 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1404 88K 89K 166960K 2002 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 23 0 dirhash 12 2K 2K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 240K 166960K 644 0 sigio 0 0K 0K 166960K 4 0 proc 60 59K 83K 166960K 510 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 68 0 in_multi 79 5K 7K 166960K 125 0 ether_multi 1 0K 0K 166960K 7 0 mrt 0 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 391 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 243 159K 174K 166960K 7289 0 UVM aobj 96 10K 10K 166960K 101 0 pinsyscall 38 76K 95K 166960K 1709 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 22 0 NDP 11 0K 2K 166960K 42 0 temp 49 8669K 8745K 166960K 20541 0 kqueue 19 25K 31K 166960K 109 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 120 177 0 171 2 1 1 2 0 8 0 rtentry 136 127 0 47 4 0 4 4 0 8 0 unpcb 144 646 0 630 6 5 1 6 0 8 0 syncache 336 6 0 6 1 1 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 736 171 0 166 1 0 1 1 0 8 0 arp 96 18 0 4 1 0 1 1 0 8 0 ipq 40 3 0 0 1 0 1 1 0 8 0 ipqe 40 3 0 0 1 0 1 1 0 8 0 inpcb 328 492 0 482 6 4 2 5 0 8 0 nd6 112 28 0 8 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 1 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1072 17 0 17 2 1 1 1 0 8 1 pppxif 1384 6 0 6 1 1 0 1 0 8 0 pfrktable 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 3 0 0 3 0 3 3 0 8 0 art_heap4 256 515 0 161 29 5 24 29 0 8 0 art_table 40 518 0 161 5 0 5 5 0 8 0 art_node 32 127 0 55 1 0 1 1 0 8 0 sysvmsgpl 40 7 0 4 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 21 0 11 1 0 1 1 0 8 0 shmpl 112 94 0 4 3 0 3 3 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2582 0 1084 95 0 95 95 0 8 0 ffsino 256 2582 0 1084 95 0 95 95 0 8 0 nchpl 144 3484 0 1793 64 0 64 64 0 8 0 rtmask 32 2 0 2 1 1 0 1 0 8 0 vnodes 216 3046 0 0 170 0 170 170 0 8 0 namei 1024 10909 0 10909 1 0 1 1 0 8 1 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 52 0 30 3 1 2 3 0 8 0 scxspl 216 11326 0 11326 3 2 1 3 1 8 1 plimitpl 152 221 0 204 1 0 1 1 0 8 0 sigapl 424 920 0 877 6 1 5 6 0 8 0 knotepl 120 26338 0 26283 33 23 10 18 0 8 6 kqueuepl 184 167 0 154 1 0 1 1 0 8 0 pipepl 304 152 0 125 3 0 3 3 0 8 0 fdescpl 448 906 0 877 5 1 4 5 0 8 0 filepl 120 5180 0 4960 13 5 8 13 0 8 0 lockfpl 104 465 0 462 1 0 1 1 0 8 0 lockfspl 48 93 0 90 1 0 1 1 0 8 0 sessionpl 144 23 0 15 1 0 1 1 0 8 0 pgrppl 48 34 0 18 1 0 1 1 0 8 0 ucredpl 104 907 0 896 1 0 1 1 0 8 0 zombiepl 144 899 0 899 2 1 1 1 0 8 1 processpl 1152 920 0 877 4 0 4 4 0 8 0 procpl 664 1672 0 1616 7 1 6 6 0 8 0 sosppl 176 7 0 7 2 1 1 1 0 8 1 sockpl 552 1332 0 1300 15 12 3 15 0 8 0 mcl64k 65536 50 0 50 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 2 0 2 1 1 0 1 0 8 0 mcl8k 8192 11 0 11 1 1 0 1 0 8 0 mcl4k 4096 3133 0 3078 14 6 8 14 0 8 0 mcl2k 2048 689 0 646 6 0 6 6 0 8 0 mtagpl 96 65 0 12 2 0 2 2 0 8 0 mbufpl 256 9571 0 9351 15 0 15 15 0 8 0 bufpl 280 3849 0 125 266 0 266 266 0 8 0 anonpl 24 151378 0 147243 59 26 33 55 0 187 3 amapchunkpl 152 24022 0 23507 35 9 26 31 0 158 4 amappl16 200 2532 0 2446 19 12 7 15 0 8 0 amappl15 192 3 0 3 1 1 0 1 0 8 0 amappl14 184 26 0 26 1 1 0 1 0 8 0 amappl13 176 402 0 401 1 0 1 1 0 8 0 amappl12 168 1249 0 1211 2 0 2 2 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 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 26 0 24 1 0 1 1 0 8 0 amappl7 128 84 0 83 1 0 1 1 0 8 0 amappl6 120 267 0 256 1 0 1 1 0 8 0 amappl5 112 70 0 62 1 0 1 1 0 8 0 amappl4 104 389 0 362 1 0 1 1 0 8 0 amappl3 96 3988 0 3891 3 0 3 3 0 8 0 amappl2 88 1029 0 958 2 0 2 2 0 8 0 amappl1 80 11243 0 10703 13 1 12 13 0 8 0 amappl 88 6490 0 6318 5 0 5 5 0 92 0 uvmvnodes 80 120 0 0 3 0 3 3 0 8 0 dma32768 32768 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 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 72 100 0 5 2 0 2 2 0 8 0 uaddrrnd 24 906 0 877 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 906 0 877 1 0 1 1 0 8 0 vmmpekpl 168 8566 0 8535 2 0 2 2 0 8 0 vmmpepl 168 63383 0 61515 98 12 86 94 0 357 0 vmsppl 368 905 0 877 4 1 3 4 0 8 0 rwobjpl 40 19006 0 17875 14 1 13 13 0 8 0 pdppl 4096 1827 0 1759 99 29 70 79 0 8 2 pvpl 32 405293 0 395994 133 36 97 123 0 265 8 pmappl 216 909 0 878 2 0 2 2 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 381 0 50 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace mtx_enter(dead4110dead41f0) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(dead4110dead4110,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72c7c8) 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(dead4110dead41f0) at mtx_enter+0x6e sys/kern/kern_lock.c:549 prsignal(dead4110dead4110,14) at prsignal+0x36 sys/kern/kern_sig.c:904 reaper(ffff80002a72c7c8) at reaper+0x2bc sys/kern/kern_exit.c:516 end trace frame: 0x0, count: -3