kernel: double fault trap, code=0 Stopped at restore_saved+0x32: xorq 0x30(%rsp),%r11 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 0xffffffff83a06000 end+0x406000 rsi 0xffff80002a4b4520 rbp 0 rbx 0 rdx 0 rcx 0xfffffd8067db36d0 rax 0x1b r8 0x7f7fffffc000 r9 0 r10 0xb291ab670a401342 r11 0xa9479052492a10cb r12 0xffff80002a4b4520 r13 0xffff80002a5b8000 r14 0xffff800037624a40 r15 0xffff80002a4b4520 rip 0xffffffff82dd11dc restore_saved+0x32 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0 ss 0x10 restore_saved+0x32: xorq 0x30(%rsp),%r11 ddb> show proc PROC (syz-executor) tid=175315 pid=18478 tcnt=1 stat=onproc flags process=8000002 proc=480 runpri=32, usrpri=82, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a4b47a8,0xffff8000376251e8 process=0xffff80002a4e2890 user=0xffff80002a5b8000, vmspace=0xfffffd8067de8ad8 estcpu=32, cpticks=0, pctcpu=0.0, user=0, sys=1, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 81580 398023 72316 0 2 0x8000480 syz-executor 81580 417793 72316 0 2 0xc000000 syz-executor 69937 412066 56815 0 3 0x8000000 vmmapbsy syz-executor 69937 54915 56815 0 2 0xc000000 syz-executor 25932 228983 18478 0 2 0x8000000 syz-executor 25932 5321 18478 0 2 0xc000000 syz-executor 85318 15885 63904 0 2 0x8000000 syz-executor 85318 467928 63904 0 3 0xc000080 fsleep syz-executor 85318 457226 63904 0 3 0xc000080 fsleep syz-executor 28052 271625 31957 0 2 0x8000000 syz-executor 28052 55895 31957 0 3 0xc000080 fsleep syz-executor 28052 269124 31957 0 3 0xc000080 fsleep syz-executor 5158 336073 52446 60928 2 0x8000010 syz-executor 5158 333323 52446 60928 2 0xc000010 syz-executor 5158 254952 52446 60928 3 0xc000090 fsleep syz-executor 5158 251297 52446 60928 3 0xc000090 fsleep syz-executor 20034 26073 94535 0 2 0x8000000 syz-executor 20034 452820 94535 0 3 0xc000080 fsleep syz-executor 20034 236143 94535 0 3 0xc000080 fsleep syz-executor 94535 128368 43891 0 3 0x8000082 nanoslp syz-executor 52446 168177 43891 0 3 0x8000082 nanoslp syz-executor 63904 424820 43891 0 3 0x8000082 nanoslp syz-executor 2251 10916 43891 0 2 0x8000002 syz-executor 31957 339628 43891 0 3 0x8000082 nanoslp syz-executor *18478 175315 43891 0 7 0x8000482 syz-executor 56815 117877 43891 0 3 0x8000082 nanoslp syz-executor 72316 39953 43891 0 3 0x8000082 nanoslp syz-executor 65534 57629 1 0 3 0x18100083 ttyin getty 66078 42537 0 0 3 0x14280 nfsidl nfsio 93872 317778 0 0 3 0x14280 nfsidl nfsio 2253 169983 0 0 3 0x14280 nfsidl nfsio 44958 5903 0 0 3 0x14280 nfsidl nfsio 35194 378532 0 0 3 0x14280 nfsidl nfsio 51357 121429 0 0 3 0x14280 nfsidl nfsio 80461 138189 0 0 3 0x14280 nfsidl nfsio 6708 84928 0 0 3 0x14280 nfsidl nfsio 30215 435805 0 0 3 0x14280 nfsidl nfsio 81692 421546 0 0 3 0x14280 nfsidl nfsio 75158 101700 0 0 3 0x14280 nfsidl nfsio 86235 197752 0 0 3 0x14280 nfsidl nfsio 38752 139264 0 0 3 0x14280 nfsidl nfsio 80455 465550 0 0 3 0x14280 nfsidl nfsio 1691 464587 0 0 3 0x14280 nfsidl nfsio 76702 489467 0 0 3 0x14280 nfsidl nfsio 34622 491823 0 0 3 0x14280 nfsidl nfsio 89985 166933 0 0 3 0x14280 nfsidl nfsio 52867 289800 0 0 3 0x14280 nfsidl nfsio 87902 464524 0 0 3 0x14280 nfsidl nfsio 9802 485218 0 0 3 0x14200 bored sosplice 4816 272268 0 0 3 0x14200 acct acct 43891 203264 62510 0 3 0x8000082 kqread syz-executor 62510 289377 84753 0 3 0x810008a sigsusp ksh 84753 280733 18449 0 3 0x18000098 kqread sshd-session 18449 297177 13890 0 3 0x18000092 kqread sshd-session 13890 5833 1 0 3 0x18000088 kqread sshd 97981 379022 78583 73 3 0x19100090 kqread syslogd 78583 7609 1 0 3 0x18100082 sbwait syslogd 36708 314702 1 0 3 0x18100080 kqread resolvd 75307 84963 75093 77 3 0x18100092 kqread dhcpleased 68667 269703 75093 77 3 0x18100092 kqread dhcpleased 75093 105076 1 0 3 0x18000080 kqread dhcpleased 40606 39133 0 0 3 0x14200 bored smr 55244 211495 0 0 2 0x14200 zerothread 26324 388517 0 0 3 0x14200 aiodoned aiodoned 72556 298044 0 0 3 0x14200 syncer update 55116 875 0 0 3 0x14200 cleaner cleaner 10796 200764 0 0 3 0x14200 reaper reaper 26563 377600 0 0 3 0x14200 pgdaemon pagedaemon 90302 333356 0 0 3 0x14200 bored viomb 2907 437320 0 0 3 0x40014200 acpi0 acpi0 93599 83423 0 0 3 0x14200 bored softnet3 37554 242462 0 0 3 0x14200 bored softnet2 45402 103971 0 0 3 0x14200 bored softnet1 24196 150610 0 0 3 0x14200 bored softnet0 29587 165010 0 0 3 0x14200 bored systqmp 73283 398147 0 0 3 0x14200 bored systq 71141 120790 0 0 3 0x40014200 tmoslp softclock 64628 367677 0 0 3 0x40014200 idle0 1 397174 0 0 3 0x8080082 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 10174 10090K 10506K 166960K 13348 0 pcb 17 13K 13K 166960K 196 0 rtable 197 6K 8K 166960K 1788 0 pf 29 12K 17K 166960K 179 0 ifaddr 38 7K 8K 166960K 235 0 ifgroup 46 2K 2K 166960K 270 0 sysctl 4 1K 2K 166960K 40 0 counters 29 17K 17K 166960K 89 0 ioctlops 0 0K 4K 166960K 326 0 iov 0 0K 18K 166960K 141 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1543 97K 97K 166960K 3217 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 3 5K 9K 166960K 35 0 VM map 2 1K 1K 166960K 2 0 sem 12 1K 1K 166960K 159 0 dirhash 12 2K 2K 166960K 39 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 97K 166960K 1535 0 sigio 0 0K 0K 166960K 11 0 proc 58 59K 124K 166960K 1701 0 subproc 104 6K 7K 166960K 637 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 122 0 in_multi 85 6K 7K 166960K 578 0 ether_multi 1 0K 0K 166960K 11 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 1279 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 234 79K 95K 166960K 13704 0 UVM aobj 81 3K 3K 166960K 83 0 pinsyscall 39 78K 104K 166960K 3618 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 10 0K 2K 166960K 168 0 temp 108 6808K 6943K 166960K 59875 0 kqueue 15 22K 30K 166960K 167 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 120 272 0 269 3 2 1 2 0 8 0 rtentry 112 627 0 538 4 0 4 4 0 8 0 unpcb 144 1260 0 1240 13 10 3 6 0 8 2 syncache 336 4 0 4 2 2 0 1 0 8 0 tcpcb 808 452 0 448 12 11 1 8 0 8 0 arp 88 105 0 88 1 0 1 1 0 8 0 ipq 40 3 0 2 2 1 1 1 0 8 0 ipqe 40 5 0 4 2 1 1 1 0 8 0 inpcb 336 1724 0 1717 14 12 2 8 0 8 1 nd6 104 158 0 135 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 2 1 1 0 8 1 kcovpl 48 49 0 41 1 0 1 1 0 8 0 ppxss 1072 10 0 10 4 3 1 1 0 8 1 pfstscr 40 4 0 4 1 1 0 1 0 8 0 pfrktable 1344 1 0 1 1 1 0 1 0 8 0 pfanchor 1288 4 0 4 1 1 0 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstkey 128 4 0 4 1 1 0 1 0 8 0 pfstate 344 2 0 2 1 1 0 1 0 8 0 pfrule 1344 10 0 7 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2336 0 1955 29 2 27 29 0 8 0 art_table 32 2337 0 1955 4 0 4 4 0 8 0 art_node 16 589 0 511 1 0 1 1 0 8 0 sysvmsgpl 40 158 0 154 1 0 1 1 0 8 0 semupl 112 1 0 1 1 1 0 1 0 8 0 semapl 112 155 0 145 1 0 1 1 0 8 0 shmpl 112 80 0 2 3 0 3 3 0 8 0 dirhash 1024 35 0 18 3 0 3 3 0 8 0 dino2pl 256 3224 0 1653 99 0 99 99 0 8 0 ffsino 240 3224 0 1653 93 0 93 93 0 8 0 nchpl 144 4670 0 2937 65 0 65 65 0 8 0 uvmvnodes 80 4901 0 0 101 0 101 101 0 8 0 vnodes 216 4901 0 0 273 0 273 273 0 8 0 namei 1024 21520 0 21519 4 3 1 2 0 8 0 vcpupl 3904 7 0 1 1 0 1 1 0 8 0 vmpool 664 11 0 5 1 0 1 1 0 8 0 kstatmem 264 140 0 120 2 0 2 2 0 8 0 scsiplug 72 2 0 2 2 2 0 1 0 8 0 scxspl 216 28463 0 28463 11 10 1 8 1 8 1 plimitpl 152 291 0 273 1 0 1 1 0 8 0 sigapl 424 1753 0 1685 9 1 8 8 0 8 0 futexpl 64 18683 0 18675 1 0 1 1 0 8 0 knotepl 120 30098 0 30044 20 16 4 10 0 8 2 kqueuepl 184 415 0 404 6 3 3 4 0 8 2 pipepl 288 497 0 470 11 8 3 7 0 8 1 fdescpl 432 1715 0 1685 5 1 4 5 0 8 0 filepl 120 12007 0 11759 29 19 10 18 0 8 1 lockfpl 104 459 0 456 2 1 1 2 0 8 0 lockfspl 48 210 0 207 1 0 1 1 0 8 0 sessionpl 144 63 0 55 1 0 1 1 0 8 0 pgrppl 48 119 0 103 1 0 1 1 0 8 0 ucredpl 104 1349 0 1337 1 0 1 1 0 8 0 zombiepl 144 1975 0 1975 4 3 1 1 0 8 1 processpl 1088 1753 0 1685 5 0 5 5 0 8 0 procpl 648 3148 0 3068 10 2 8 8 0 8 0 sosppl 168 4 0 4 2 2 0 1 0 8 0 sockpl 504 3345 0 3315 56 44 12 22 0 8 8 mcl64k 65536 11 0 11 3 2 1 1 0 8 1 mcl16k 16384 6 0 6 2 2 0 1 0 8 0 mcl8k 8192 105 0 105 4 3 1 1 0 8 1 mcl4k 4096 11 0 11 3 2 1 1 0 8 1 mcl2k 2048 8496 0 8397 30 15 15 28 0 8 1 mtagpl 96 63 0 63 2 1 1 1 0 8 1 mbufpl 256 20851 0 20628 67 51 16 64 0 8 0 bufpl 280 7835 0 1588 447 0 447 447 0 8 0 anonpl 24 354921 0 343355 146 76 70 73 0 187 0 amapchunkpl 152 46924 0 46160 67 37 30 37 0 158 0 amappl16 200 8739 0 8474 70 56 14 27 0 8 0 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 197 0 187 1 0 1 1 0 8 0 amappl13 176 48 0 48 2 2 0 1 0 8 0 amappl12 168 2986 0 2957 3 1 2 3 0 8 0 amappl11 160 51 0 41 1 0 1 1 0 8 0 amappl10 152 15 0 15 1 1 0 1 0 8 0 amappl9 144 108 0 108 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 179 0 168 1 0 1 1 0 8 0 amappl6 120 577 0 574 1 0 1 1 0 8 0 amappl5 112 290 0 281 1 0 1 1 0 8 0 amappl4 104 415 0 397 1 0 1 1 0 8 0 amappl3 96 8662 0 8542 6 2 4 4 0 8 1 amappl2 88 1203 0 1146 2 0 2 2 0 8 0 amappl1 80 14184 0 13648 16 4 12 15 0 8 0 amappl 88 12986 0 12812 6 1 5 5 0 92 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 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 82 0 2 2 0 2 2 0 8 0 uaddrrnd 24 1726 0 1690 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1726 0 1690 1 0 1 1 0 8 0 vmmpekpl 168 15572 0 15517 3 0 3 3 0 8 0 vmmpepl 168 114601 0 112562 126 37 89 100 0 357 0 vmsppl 344 1725 0 1690 5 1 4 4 0 8 0 rwobjpl 24 41637 0 35539 37 0 37 37 0 8 0 pdppl 4096 3458 0 3386 171 99 72 82 0 8 0 pvpl 32 905469 0 878057 484 262 222 235 0 265 0 pmappl 216 1725 0 1690 4 1 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 612 0 258 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