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 0xffff800037713b20 rbp 0 rbx 0x756e6547 rdx 0x49656e69 rcx 0x6c65746e rax 0x100000000000 r8 0 r9 0x10000 __ALIGN_SIZE+0xf000 r10 0 r11 0 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff822e889b done_flush+0x38 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0xffff8000376ad468 ss 0x10 done_flush+0x38: movl %eax,%dr6 ddb> show proc PROC (syz-executor) tid=235917 pid=28917 tcnt=4 stat=onproc flags process=8000000 proc=4000000 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4902c8,0xffff80002a490f80 process=0xffff80002a56c228 user=0xffff8000376a8000, vmspace=0xfffffd8060435428 estcpu=32, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 5286 444569 33653 0 2 0x8000000 syz-executor 79984 294803 2809 0 3 0x8000000 vmmaplk syz-executor 79984 139061 2809 0 3 0xc000080 kqread syz-executor 79984 40748 2809 0 2 0xc000000 syz-executor 33663 177023 63345 0 2 0x8000000 syz-executor 33663 123234 63345 0 3 0xc000080 fsleep syz-executor 33663 94258 63345 0 2 0xc000000 syz-executor 49436 452548 71269 0 2 0x8000000 syz-executor 49436 470973 71269 0 3 0xc000080 fsleep syz-executor 49436 443331 71269 0 3 0xc000080 fsleep syz-executor 49436 199141 71269 0 2 0xc000080 syz-executor 28917 301315 24623 0 2 0x8000000 syz-executor *28917 235917 24623 0 7 0xc000000 syz-executor 28917 520939 24623 0 3 0xc000080 fsleep syz-executor 28917 245045 24623 0 3 0xc000080 fsleep syz-executor 51427 284489 26495 -1 2 0x8000010 syz-executor 51427 212938 26495 -1 2 0xc000090 syz-executor 51427 523456 26495 -1 2 0xc000010 syz-executor 62660 337686 429 0 2 0x8000000 syz-executor 62660 148017 429 0 2 0xc000080 syz-executor 62660 68294 429 0 3 0xc000080 fsleep syz-executor 49356 523738 0 0 3 0x14280 nfsidl nfsio 31510 151970 0 0 3 0x14280 nfsidl nfsio 75361 376444 0 0 3 0x14280 nfsidl nfsio 67245 271745 0 0 3 0x14280 nfsidl nfsio 15368 252184 0 0 3 0x14280 nfsidl nfsio 98057 373232 0 0 3 0x14280 nfsidl nfsio 62087 371873 0 0 3 0x14280 nfsidl nfsio 22666 56843 0 0 3 0x14280 nfsidl nfsio 98764 151306 0 0 3 0x14280 nfsidl nfsio 41420 78693 0 0 3 0x14280 nfsidl nfsio 39505 163069 0 0 3 0x14280 nfsidl nfsio 34245 91577 0 0 3 0x14280 nfsidl nfsio 48659 178198 0 0 3 0x14280 nfsidl nfsio 54724 333176 0 0 3 0x14280 nfsidl nfsio 59532 197324 0 0 3 0x14280 nfsidl nfsio 18840 32397 0 0 3 0x14280 nfsidl nfsio 39833 39070 0 0 3 0x14280 nfsidl nfsio 66611 430433 0 0 3 0x14280 nfsidl nfsio 92746 233445 0 0 3 0x14280 nfsidl nfsio 30811 9254 0 0 3 0x14280 nfsidl nfsio 71269 282917 38773 0 3 0x8000082 nanoslp syz-executor 429 94229 38773 0 3 0x8000082 nanoslp syz-executor 63345 469002 38773 0 3 0x8000082 nanoslp syz-executor 61631 446503 38773 0 2 0x8000002 syz-executor 26495 463502 38773 0 3 0x8000082 nanoslp syz-executor 24623 343006 38773 0 3 0x8000082 nanoslp syz-executor 2809 33378 38773 0 3 0x8000082 nanoslp syz-executor 33653 451769 38773 0 3 0x8000082 nanoslp syz-executor 88951 5822 1 0 3 0x18100083 ttyin getty 68892 451947 0 0 3 0x14200 acct acct 29908 20864 0 0 3 0x14200 bored sosplice 38773 224032 79987 0 3 0x8000082 kqread syz-executor 79987 360964 88765 0 3 0x810008a sigsusp ksh 88765 149721 95259 0 3 0x18000098 kqread sshd-session 95259 19746 57338 0 3 0x18000092 kqread sshd-session 57338 380421 1 0 3 0x18000088 kqread sshd 13608 244964 88173 73 3 0x19100090 kqread syslogd 88173 161611 1 0 3 0x18100082 sbwait syslogd 38109 332967 1 0 3 0x18100080 kqread resolvd 17610 79022 69512 77 3 0x18100092 kqread dhcpleased 85089 487471 69512 77 3 0x18100092 kqread dhcpleased 69512 356162 1 0 3 0x18000080 kqread dhcpleased 27629 365304 0 0 3 0x14200 bored smr 69803 370916 0 0 2 0x14200 zerothread 36943 73294 0 0 3 0x14200 aiodoned aiodoned 75335 481732 0 0 3 0x14200 syncer update 13839 493456 0 0 3 0x14200 cleaner cleaner 85193 48817 0 0 3 0x14200 reaper reaper 11442 514675 0 0 3 0x14200 pgdaemon pagedaemon 81633 419544 0 0 3 0x14200 bored viomb 88797 14560 0 0 3 0x40014200 acpi0 acpi0 65362 151639 0 0 3 0x14200 bored softnet3 72340 372230 0 0 3 0x14200 bored softnet2 64545 154972 0 0 3 0x14200 bored softnet1 52159 427814 0 0 3 0x14200 bored softnet0 69069 218896 0 0 3 0x14200 bored systqmp 19841 170545 0 0 3 0x14200 bored systq 6527 351555 0 0 3 0x40014200 tmoslp softclock 75802 62436 0 0 3 0x40014200 idle0 1 449037 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 10204 10102K 10550K 166960K 12859 0 pcb 18 19K 23K 166960K 318 0 rtable 250 8K 9K 166960K 1509 0 pf 33 13K 14K 166960K 149 0 ifaddr 44 8K 8K 166960K 199 0 ifgroup 54 2K 2K 166960K 231 0 sysctl 4 1K 1K 166960K 4 0 counters 31 17K 17K 166960K 77 0 ioctlops 0 0K 4K 166960K 243 0 iov 0 0K 18K 166960K 218 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1500 94K 95K 166960K 3040 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 72K 80K 166960K 39 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 105 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 17 61K 93K 166960K 1572 0 sigio 1 0K 0K 166960K 19 0 proc 58 59K 91K 166960K 1514 0 subproc 104 6K 7K 166960K 561 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 142 0 in_multi 103 7K 7K 166960K 513 0 ether_multi 1 0K 0K 166960K 12 0 mrt 0 0K 0K 166960K 6 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 217 970K 970K 166960K 217 0 exec 0 0K 1K 166960K 1002 0 pfkey data 0 0K 0K 166960K 36 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 229 72K 81K 166960K 14658 0 UVM aobj 121 7K 7K 166960K 122 0 pinsyscall 38 76K 97K 166960K 3483 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 52 0 NDP 12 0K 2K 166960K 143 0 temp 75 6812K 6940K 166960K 38004 0 kqueue 13 20K 28K 166960K 153 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 120 405 0 402 7 2 5 5 0 8 4 rtentry 112 522 0 408 4 0 4 4 0 8 0 unpcb 144 1070 0 1049 6 3 3 4 0 8 2 syncache 336 6 0 6 2 1 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 363 0 358 4 3 1 4 0 8 0 arp 88 95 0 77 1 0 1 1 0 8 0 ipq 40 5 0 5 1 0 1 1 0 8 1 ipqe 40 50 0 50 1 0 1 1 0 8 1 inpcb 336 1831 0 1821 23 14 9 18 0 8 7 nd6 104 136 0 109 1 0 1 1 0 8 0 pkpcb 40 46 0 46 2 1 1 1 0 8 1 kcovpl 48 43 0 35 1 0 1 1 0 8 0 ppxss 1072 8 0 8 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2053 0 1587 32 1 31 31 0 8 1 art_table 32 2054 0 1587 4 0 4 4 0 8 0 art_node 16 521 0 420 1 0 1 1 0 8 0 sysvmsgpl 40 5 0 2 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 103 0 93 1 0 1 1 0 8 0 shmpl 112 119 0 1 4 0 4 4 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3585 0 2030 98 0 98 98 0 8 0 ffsino 240 3585 0 2030 93 0 93 93 0 8 0 nchpl 144 5212 0 3481 65 0 65 65 0 8 0 uvmvnodes 80 4887 0 0 100 0 100 100 0 8 0 vnodes 216 4887 0 0 272 0 272 272 0 8 0 namei 1024 22165 0 22165 2 1 1 2 0 8 1 vcpupl 3904 5 0 1 1 0 1 1 0 8 0 vmpool 664 9 0 5 1 0 1 1 0 8 0 kstatmem 264 116 0 92 2 0 2 2 0 8 0 scsiplug 72 6 0 6 2 1 1 1 0 8 1 scxspl 216 30331 0 30331 9 7 2 8 1 8 2 plimitpl 152 270 0 253 1 0 1 1 0 8 0 sigapl 424 1825 0 1758 9 1 8 8 0 8 0 futexpl 64 19346 0 19340 1 0 1 1 0 8 0 knotepl 120 34370 0 34323 24 14 10 17 0 8 8 kqueuepl 184 408 0 397 6 3 3 4 0 8 2 pipepl 288 489 0 462 7 2 5 5 0 8 2 fdescpl 432 1767 0 1738 5 1 4 5 0 8 0 filepl 120 12800 0 12548 18 4 14 14 0 8 5 lockfpl 104 557 0 555 2 1 1 2 0 8 0 lockfspl 48 188 0 186 1 0 1 1 0 8 0 sessionpl 144 56 0 48 1 0 1 1 0 8 0 pgrppl 48 107 0 91 1 0 1 1 0 8 0 ucredpl 104 1891 0 1879 1 0 1 1 0 8 0 zombiepl 144 2068 0 2068 2 1 1 1 0 8 1 processpl 1088 1825 0 1758 6 1 5 5 0 8 0 procpl 648 3509 0 3428 9 1 8 8 0 8 0 sosppl 168 4 0 4 2 1 1 1 0 8 1 sockpl 504 3406 0 3372 52 40 12 30 0 8 7 mcl64k 65536 18 0 18 2 1 1 1 0 8 1 mcl16k 16384 3 0 3 1 1 0 1 0 8 0 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 36 0 36 2 1 1 1 0 8 1 mcl4k 4096 14 0 14 2 1 1 1 0 8 1 mcl2k2 2112 4 0 4 2 1 1 1 0 8 1 mcl2k 2048 8667 0 8576 30 16 14 30 0 8 1 mtagpl 96 36 0 34 1 0 1 1 0 8 0 mbufpl 256 21560 0 21352 68 44 24 45 0 8 8 bufpl 280 8287 0 2042 447 0 447 447 0 8 0 anonpl 24 350562 0 347216 101 50 51 79 0 187 21 amapchunkpl 152 48225 0 47738 56 24 32 43 0 158 10 amappl16 200 8048 0 8025 34 23 11 14 0 8 8 amappl15 192 38 0 38 1 1 0 1 0 8 0 amappl14 184 192 0 182 1 0 1 1 0 8 0 amappl13 176 13 0 13 1 1 0 1 0 8 0 amappl12 168 2927 0 2898 3 1 2 3 0 8 0 amappl11 160 74 0 64 1 0 1 1 0 8 0 amappl10 152 12 0 12 1 1 0 1 0 8 0 amappl9 144 85 0 85 1 1 0 1 0 8 0 amappl8 136 19 0 18 1 0 1 1 0 8 0 amappl7 128 171 0 161 1 0 1 1 0 8 0 amappl6 120 512 0 510 1 0 1 1 0 8 0 amappl5 112 268 0 259 1 0 1 1 0 8 0 amappl4 104 392 0 376 1 0 1 1 0 8 0 amappl3 96 9558 0 9446 4 0 4 4 0 8 0 amappl2 88 1099 0 1042 2 0 2 2 0 8 0 amappl1 80 13945 0 13404 13 1 12 13 0 8 0 amappl 88 13990 0 13818 5 0 5 5 0 92 0 dma4096 4096 2 0 2 1 1 0 1 0 8 0 dma2048 2048 1 0 1 1 1 0 1 0 8 0 dma1024 1024 1 0 0 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 72 121 0 1 3 0 3 3 0 8 0 uaddrrnd 24 1776 0 1743 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1776 0 1743 1 0 1 1 0 8 0 vmmpekpl 168 16556 0 16503 3 0 3 3 0 8 0 vmmpepl 168 116613 0 114841 104 12 92 92 0 357 11 vmsppl 344 1775 0 1743 5 1 4 4 0 8 0 rwobjpl 24 41243 0 35371 36 0 36 36 0 8 0 pdppl 4096 3558 0 3490 161 90 71 80 0 8 3 pvpl 32 944623 0 934587 487 265 222 353 0 265 132 pmappl 216 1775 0 1743 3 1 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 593 0 220 12 0 12 12 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