kernel: protection fault trap, code=0 Stopped at done_flush+0x38: movl %eax,%dr6 ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic the kernel did not panic ddb> trace end trace frame: 0x0, count: -1 ddb> show registers rdi 0x6c14 __ALIGN_SIZE+0x5c14 rsi 0xffff800037654a60 rbp 0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0xfffffffffffffffc r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0 r11 0 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff814b4aab done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff800037646ad8 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb> show proc PROC (syz-executor) tid=338292 pid=14256 tcnt=3 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=86, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a49c540,0xffff80002a49cf70 process=0xffff8000ffff66a0 user=0xffff800037642000, vmspace=0xfffffd805c192988 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 14256 166278 79556 0 2 0x8000000 syz-executor *14256 338292 79556 0 7 0xc000000 syz-executor 14256 380824 79556 0 3 0xc000080 fsleep syz-executor 92516 441117 81394 0 2 0x8000000 syz-executor 92516 505366 81394 0 3 0xc000080 fsleep syz-executor 92516 310672 81394 0 3 0xc000080 fsleep syz-executor 38714 220447 71432 0 2 0x8000000 syz-executor 67845 412025 52331 60928 2 0x8000010 syz-executor 67845 81268 52331 60928 3 0xc000090 fsleep syz-executor 78506 262936 73234 0 2 0x8000000 syz-executor 78506 365218 73234 0 2 0xc000000 syz-executor 64495 493018 86524 0 2 0x8000000 syz-executor 64495 490647 86524 0 3 0xc000080 fsleep syz-executor 73234 202863 94387 0 2 0x8000482 syz-executor 19262 119404 94387 0 3 0x8000082 wait syz-executor 71432 393603 94387 0 3 0x8000082 nanoslp syz-executor 77803 85138 1 0 3 0x8003000 suspend syz-executor 77803 321588 1 0 2 0xc081000 syz-executor 52331 308118 94387 0 3 0x8000082 nanoslp syz-executor 86524 337123 94387 0 2 0x8000482 syz-executor 81394 135902 94387 0 3 0x8000082 nanoslp syz-executor 79556 408166 94387 0 2 0x8000002 syz-executor 69321 398349 94387 0 2 0x8000002 syz-executor 9414 52180 0 0 3 0x14280 nfsidl nfsio 9896 86567 0 0 3 0x14280 nfsidl nfsio 41824 157387 0 0 3 0x14280 nfsidl nfsio 7653 301590 0 0 3 0x14280 nfsidl nfsio 45763 450527 0 0 3 0x14280 nfsidl nfsio 76753 376708 0 0 3 0x14280 nfsidl nfsio 5821 292339 0 0 3 0x14280 nfsidl nfsio 21103 242362 0 0 3 0x14280 nfsidl nfsio 7914 84283 0 0 3 0x14280 nfsidl nfsio 92935 391198 0 0 3 0x14280 nfsidl nfsio 98675 406733 0 0 3 0x14280 nfsidl nfsio 46801 482042 0 0 3 0x14280 nfsidl nfsio 50437 348632 0 0 3 0x14280 nfsidl nfsio 97734 360940 0 0 3 0x14280 nfsidl nfsio 11576 134640 0 0 3 0x14280 nfsidl nfsio 90745 393737 0 0 3 0x14280 nfsidl nfsio 85079 389577 0 0 3 0x14280 nfsidl nfsio 81077 457694 0 0 3 0x14280 nfsidl nfsio 76792 458994 0 0 3 0x14280 nfsidl nfsio 40532 135584 0 0 3 0x14280 nfsidl nfsio 6365 171150 1 0 3 0x18100083 ttyin getty 38207 307143 0 0 3 0x14200 bored sosplice 94387 499580 84721 0 3 0x8000082 kqread syz-executor 84721 91602 42006 0 3 0x810008a sigsusp ksh 42006 391210 76851 0 3 0x18000098 kqread sshd-session 76851 181580 59717 0 3 0x18000092 kqread sshd-session 59717 16615 1 0 3 0x18000088 kqread sshd 29315 36749 18649 73 3 0x19100090 kqread syslogd 18649 383268 1 0 3 0x18100082 sbwait syslogd 55732 328212 1 0 3 0x18100080 kqread resolvd 28910 473759 3391 77 3 0x18100092 kqread dhcpleased 97876 141607 3391 77 3 0x18100092 kqread dhcpleased 3391 272629 1 0 3 0x18000080 kqread dhcpleased 97201 126319 0 0 3 0x14200 bored smr 94157 81608 0 0 2 0x14200 zerothread 76131 391282 0 0 3 0x14200 aiodoned aiodoned 40200 458411 0 0 3 0x14200 syncer update 61300 342388 0 0 3 0x14200 cleaner cleaner 96067 399480 0 0 3 0x14200 reaper reaper 63993 397627 0 0 3 0x14200 pgdaemon pagedaemon 2574 254288 0 0 3 0x14200 bored viomb 1058 138632 0 0 3 0x40014200 acpi0 acpi0 72641 200984 0 0 3 0x14200 bored softnet3 80699 253022 0 0 3 0x14200 bored softnet2 86329 278964 0 0 3 0x14200 bored softnet1 68 451589 0 0 3 0x14200 bored softnet0 80066 148492 0 0 3 0x14200 bored systqmp 64124 230913 0 0 3 0x14200 bored systq 14092 275676 0 0 3 0x40014200 tmoslp softclock 83576 390493 0 0 3 0x40014200 idle0 1 429868 0 0 3 0x8000082 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 10223 10100K 11177K 166960K 12559 0 pcb 17 16K 18K 166960K 299 0 rtable 196 6K 7K 166960K 1385 0 pf 31 13K 16K 166960K 119 0 ifaddr 39 7K 8K 166960K 166 0 ifgroup 50 2K 2K 166960K 176 0 sysctl 3 0K 0K 166960K 5 0 counters 30 17K 17K 166960K 64 0 ioctlops 0 0K 4K 166960K 300 0 iov 0 0K 24K 166960K 55 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1529 96K 96K 166960K 2507 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 68K 72K 166960K 19 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 72 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 93K 166960K 1226 0 sigio 0 0K 0K 166960K 93 0 proc 58 59K 100K 166960K 1297 0 subproc 117 7K 8K 166960K 455 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 131 0 in_multi 88 6K 7K 166960K 405 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 355 1579K 1579K 166960K 355 0 exec 0 0K 1K 166960K 808 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 225 80K 94K 166960K 11246 0 UVM aobj 31 2K 2K 166960K 33 0 pinsyscall 39 78K 95K 166960K 2955 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 45 0 NDP 11 0K 2K 166960K 115 0 temp 81 6816K 6956K 166960K 38648 0 kqueue 13 20K 26K 166960K 110 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 120 170 0 167 1 0 1 1 0 8 0 rtentry 112 433 0 345 4 0 4 4 0 8 1 unpcb 144 1186 0 1171 6 0 6 6 0 8 5 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 808 385 0 379 14 6 8 8 0 8 7 arp 88 79 0 63 1 0 1 1 0 8 0 ipq 40 5 0 5 1 0 1 1 0 8 1 ipqe 40 5 0 5 1 0 1 1 0 8 1 inpcb 336 1260 0 1246 12 5 7 7 0 8 5 nd6 104 109 0 88 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 0 1 1 0 8 1 kcovpl 48 35 0 26 1 0 1 1 0 8 0 ppxss 1072 5 0 5 1 0 1 1 0 8 1 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrule 1344 4 0 4 1 0 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 1696 0 1293 29 0 29 29 0 8 2 art_table 32 1697 0 1293 4 0 4 4 0 8 0 art_node 16 429 0 351 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 70 0 60 1 0 1 1 0 8 0 shmpl 112 30 0 2 1 0 1 1 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3028 0 1473 98 0 98 98 0 8 0 ffsino 240 3028 0 1473 92 0 92 92 0 8 0 nchpl 144 4335 0 2618 64 0 64 64 0 8 0 uvmvnodes 80 3941 0 0 81 0 81 81 0 8 0 vnodes 216 3941 0 0 219 0 219 219 0 8 0 namei 1024 19374 0 19373 3 2 1 2 0 8 0 vcpupl 3904 3 0 0 1 0 1 1 0 8 0 vmpool 664 4 0 1 1 0 1 1 0 8 0 kstatmem 264 90 0 68 2 0 2 2 0 8 0 scxspl 216 24007 0 24007 10 2 8 8 1 8 8 plimitpl 152 424 0 406 1 0 1 1 0 8 0 sigapl 424 1475 0 1408 8 0 8 8 0 8 0 futexpl 64 13810 0 13805 1 0 1 1 0 8 0 knotepl 120 27091 0 27044 16 6 10 10 0 8 8 kqueuepl 184 308 0 299 4 0 4 4 0 8 3 pipepl 288 324 0 296 8 1 7 7 0 8 4 fdescpl 432 1437 0 1407 5 1 4 5 0 8 0 filepl 120 10842 0 10570 16 1 15 15 0 8 4 lockfpl 104 492 0 487 1 0 1 1 0 8 0 lockfspl 48 130 0 125 1 0 1 1 0 8 0 sessionpl 144 49 0 41 1 0 1 1 0 8 0 pgrppl 48 96 0 79 1 0 1 1 0 8 0 ucredpl 104 1740 0 1726 1 0 1 1 0 8 0 zombiepl 144 1410 0 1408 1 0 1 1 0 8 0 processpl 1096 1475 0 1408 5 0 5 5 0 8 0 procpl 648 2530 0 2455 7 0 7 7 0 8 0 sosppl 168 7 0 6 2 1 1 1 0 8 0 sockpl 504 2628 0 2596 35 22 13 22 0 8 8 mcl64k 65536 9 0 9 2 1 1 1 0 8 1 mcl16k 16384 5 0 5 2 1 1 1 0 8 1 mcl8k 8192 19 0 19 2 1 1 1 0 8 1 mcl4k 4096 5 0 5 2 1 1 1 0 8 1 mcl2k 2048 7632 0 7538 26 11 15 25 0 8 2 mtagpl 96 18 0 15 2 1 1 1 0 8 0 mbufpl 256 17217 0 17039 24 6 18 24 0 8 1 bufpl 280 7811 0 1566 447 0 447 447 0 8 0 anonpl 24 245116 0 239241 82 3 79 79 0 187 43 amapchunkpl 152 36337 0 35851 51 8 43 43 0 158 21 amappl16 200 5036 0 4857 24 7 17 20 0 8 7 amappl15 192 6 0 6 1 1 0 1 0 8 0 amappl14 184 160 0 150 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 2481 0 2452 2 0 2 2 0 8 0 amappl11 160 53 0 42 1 0 1 1 0 8 0 amappl10 152 47 0 46 1 0 1 1 0 8 0 amappl9 144 132 0 132 1 1 0 1 0 8 0 amappl8 136 22 0 21 1 0 1 1 0 8 0 amappl7 128 150 0 140 1 0 1 1 0 8 0 amappl6 120 432 0 431 1 0 1 1 0 8 0 amappl5 112 237 0 229 1 0 1 1 0 8 0 amappl4 104 374 0 358 1 0 1 1 0 8 0 amappl3 96 7253 0 7144 4 0 4 4 0 8 0 amappl2 88 999 0 943 2 0 2 2 0 8 0 amappl1 80 12524 0 11991 13 1 12 13 0 8 0 amappl 88 10649 0 10481 6 1 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 0 1 1 0 8 1 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 32 0 2 1 0 1 1 0 8 0 uaddrrnd 24 1441 0 1408 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1441 0 1408 1 0 1 1 0 8 0 vmmpekpl 168 12983 0 12930 3 0 3 3 0 8 0 vmmpepl 168 93685 0 91724 95 1 94 94 0 357 5 vmsppl 344 1440 0 1408 5 1 4 4 0 8 0 rwobjpl 24 32290 0 27300 31 0 31 31 0 8 0 pdppl 4096 2888 0 2819 159 88 71 80 0 8 2 pvpl 32 710809 0 698016 363 13 350 363 0 265 241 pmappl 216 1440 0 1408 3 0 3 3 0 8 1 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 519 0 148 11 0 11 11 0 8 0 ddb> machine ddbcpu 0 No such command ddb> trace end trace frame: 0x0, count: -1 ddb> machine ddbcpu 1 No such command ddb> trace end trace frame: 0x0, count: -1