kernel: double fault trap, code=0 Stopped at restore_saved+0x35: 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 0xffffffff82e0e000 end+0x20e000 rsi 0xffff80002165ed28 rbp 0 rbx 0 rdx 0 rcx 0xfffffd806a90b0e0 rax 0x23 r8 0 r9 0 r10 0x721538610d4f4947 r11 0x65248593fa043c8f r12 0xffff80002165ed28 r13 0xffff800027f30000 r14 0xffff8000216aad28 r15 0xffff80002165ed28 rip 0xffffffff815691e7 restore_saved+0x35 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0 ss 0x10 restore_saved+0x35: xorq 0x30(%rsp),%r11 ddb> show proc PROC (syz-executor.5) pid=270132 stat=onproc flags process=0 proc=0 pri=82, usrpri=82, nice=20 forw=0xffffffffffffffff, list=0xffff80002169dcf0,0xffff80002165ea98 process=0xffff800021624fc0 user=0xffff800027f30000, vmspace=0xfffffd806c3809a0 estcpu=32, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 46984 134973 47252 0 2 0 syz-executor.4 46984 5884 47252 0 2 0x4000000 syz-executor.4 46984 443605 47252 0 2 0x4000000 syz-executor.4 46984 381636 47252 0 2 0x4000000 syz-executor.4 70450 27746 85360 0 2 0 syz-executor.1 70450 110490 85360 0 3 0x4000080 fsleep syz-executor.1 58260 343432 16811 0 2 0 syz-executor.7 58260 182205 16811 0 3 0x4000080 fsleep syz-executor.7 17469 35176 82988 0 2 0 syz-executor.2 17469 21298 82988 0 3 0x4000080 fsleep syz-executor.2 46590 402730 44885 0 2 0 syz-executor.3 46590 311043 44885 0 3 0x4000080 fsleep syz-executor.3 38901 450666 13446 0 2 0 syz-executor.6 38901 242519 13446 0 3 0x4000080 fsleep syz-executor.6 38901 101064 13446 0 3 0x4000080 fsleep syz-executor.6 96147 271313 22845 0 2 0 syz-executor.0 96147 26271 22845 0 3 0x4000080 fsleep syz-executor.0 *19938 270132 39608 0 7 0 syz-executor.5 19938 67083 39608 0 3 0x4000080 fsleep syz-executor.5 16811 274994 79302 0 3 0x82 nanoslp syz-executor.7 39608 428246 79302 0 3 0x82 nanoslp syz-executor.5 84911 91279 0 0 3 0x14280 nfsidl nfsio 82280 230181 0 0 3 0x14280 nfsidl nfsio 35056 505965 0 0 3 0x14280 nfsidl nfsio 40764 13063 0 0 3 0x14280 nfsidl nfsio 5863 234 0 0 3 0x14280 nfsidl nfsio 47932 37767 0 0 3 0x14280 nfsidl nfsio 70290 344168 0 0 3 0x14280 nfsidl nfsio 8328 304442 0 0 3 0x14280 nfsidl nfsio 44647 129807 0 0 3 0x14280 nfsidl nfsio 64402 405406 0 0 3 0x14280 nfsidl nfsio 22527 494675 0 0 3 0x14280 nfsidl nfsio 59770 454235 0 0 3 0x14280 nfsidl nfsio 68735 281097 0 0 3 0x14280 nfsidl nfsio 43116 444790 0 0 3 0x14280 nfsidl nfsio 76422 427845 0 0 3 0x14280 nfsidl nfsio 59868 231893 0 0 3 0x14280 nfsidl nfsio 41588 64686 0 0 3 0x14280 nfsidl nfsio 9568 69109 0 0 3 0x14280 nfsidl nfsio 99654 113127 0 0 3 0x14280 nfsidl nfsio 46600 82114 0 0 3 0x14280 nfsidl nfsio 82988 196574 79302 0 3 0x82 nanoslp syz-executor.2 22845 107237 79302 0 3 0x82 nanoslp syz-executor.0 13446 332258 79302 0 3 0x82 nanoslp syz-executor.6 9532 424388 0 0 3 0x14200 bored sosplice 44885 293716 79302 0 3 0x82 nanoslp syz-executor.3 85360 32402 79302 0 3 0x82 nanoslp syz-executor.1 47252 120589 79302 0 3 0x82 nanoslp syz-executor.4 79302 415267 98705 0 3 0x82 thrsleep syz-fuzzer 79302 157656 98705 0 3 0x4000082 thrsleep syz-fuzzer 79302 382317 98705 0 3 0x4000082 thrsleep syz-fuzzer 79302 440347 98705 0 3 0x4000082 thrsleep syz-fuzzer 79302 219146 98705 0 3 0x4000082 thrsleep syz-fuzzer 79302 182584 98705 0 3 0x4000082 thrsleep syz-fuzzer 79302 129384 98705 0 3 0x4000082 kqread syz-fuzzer 79302 196878 98705 0 3 0x4000082 thrsleep syz-fuzzer 79302 46155 98705 0 3 0x4000082 thrsleep syz-fuzzer 98705 459401 72811 0 3 0x10008a sigsusp ksh 72811 380028 5042 0 3 0x9a kqread sshd 21604 229618 1 0 3 0x100083 ttyin getty 5042 269284 1 0 3 0x88 kqread sshd 78193 46338 64209 73 3 0x1100090 kqread syslogd 64209 163493 1 0 3 0x100082 netio syslogd 14243 52850 1 0 3 0x100080 kqread resolvd 56674 295096 95963 77 3 0x100092 kqread dhcpleased 84990 381863 95963 77 3 0x100092 kqread dhcpleased 95963 55342 1 0 3 0x80 kqread dhcpleased 86282 97736 0 0 3 0x14200 bored smr 21362 312488 0 0 2 0x14200 zerothread 56399 87525 0 0 3 0x14200 aiodoned aiodoned 25273 492802 0 0 3 0x14200 syncer update 9072 481380 0 0 3 0x14200 cleaner cleaner 67757 239046 0 0 3 0x14200 reaper reaper 23154 128724 0 0 3 0x14200 pgdaemon pagedaemon 76470 440370 0 0 3 0x14200 bored viomb 78280 270311 0 0 3 0x40014200 acpi0 acpi0 88927 61162 0 0 3 0x14200 bored softnet 66385 119475 0 0 3 0x14200 bored systqmp 14496 330989 0 0 3 0x14200 bored systq 65352 277478 0 0 3 0x40014200 bored softclock 41868 388714 0 0 3 0x40014200 idle0 1 417326 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 10173 6436K 6998K 78643K 15909 0 pcb 13 12K 14K 78643K 678 0 rtable 212 12K 15K 78643K 1113 0 ifaddr 156 35K 35K 78643K 530 0 sysctl 2 0K 0K 78643K 2 0 counters 27 17K 17K 78643K 59 0 ioctlops 0 0K 4K 78643K 1268 0 iov 0 0K 16K 78643K 432 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1335 83K 84K 78643K 2768 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 30 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 1K 78643K 353 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 18 65K 85K 78643K 4268 0 sigio 0 0K 0K 78643K 109 0 proc 61 55K 79K 78643K 714 0 subproc 104 6K 6K 78643K 169 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 480 0 in_multi 88 5K 6K 78643K 295 0 ether_multi 1 0K 0K 78643K 53 0 mrt 0 0K 0K 78643K 13 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 79 360K 360K 78643K 79 0 exec 0 0K 2K 78643K 1272 0 pfkey data 0 0K 4K 78643K 526 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 7 26K 26K 78643K 7 0 UVM amap 359 168K 177K 78643K 53748 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 201 0 NDP 12 0K 2K 78643K 74 0 temp 134 4715K 4787K 78643K 23298 0 kqueue 12 18K 24K 78643K 214 0 SYN cache 2 16K 16K 78643K 2 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle rtpcb 120 347 0 343 4 3 1 3 0 8 0 rtentry 112 215 0 124 4 0 4 4 0 8 0 unpcb 136 4871 0 4858 40 35 5 6 0 8 4 syncache 296 18 0 18 4 4 0 1 0 8 0 tcpqe 32 63 0 63 3 3 0 1 0 8 0 tcpcb 736 885 0 881 24 22 2 8 0 8 1 arp 88 33 0 17 1 0 1 1 0 8 0 ipq 40 20 0 19 4 3 1 1 0 8 0 ipqe 40 51 0 50 4 3 1 1 0 8 0 inpcb 312 2878 0 2871 51 47 4 9 0 8 3 rttmr 72 6 0 6 1 1 0 1 0 8 0 nd6 48 44 0 22 1 0 1 1 0 8 0 pkpcb 40 4892 0 4827 6 5 1 2 0 8 0 kcovpl 48 13 0 5 1 0 1 1 0 8 0 ppxss 1152 17 0 17 4 3 1 1 0 8 1 pfstscr 40 14 0 11 2 1 1 1 0 8 0 pffrent 40 1 0 1 1 1 0 1 0 8 0 pfosfp 40 1 0 0 1 0 1 1 0 8 0 pfosfpen 112 1 0 0 1 0 1 1 0 8 0 pfrktable 1344 164 0 160 2 1 1 1 0 8 0 pftag 88 13 0 12 1 0 1 1 0 8 0 pfqueue 264 1 0 1 1 1 0 1 0 8 0 pfstitem 24 57 0 34 1 0 1 1 0 8 0 pfstkey 112 100 0 97 1 0 1 1 0 8 0 pfstate 320 84 0 64 3 0 3 3 0 8 0 pfrule 1360 133 0 113 3 1 2 2 0 8 0 art_heap8 4096 2 0 1 2 1 1 2 0 8 0 art_heap4 256 850 0 444 39 10 29 30 0 8 1 art_table 32 852 0 445 4 0 4 4 0 8 0 art_node 16 210 0 129 1 0 1 1 0 8 0 sysvmsgpl 40 51 0 11 1 0 1 1 0 8 0 semupl 112 6 0 6 2 2 0 1 0 8 0 semapl 112 351 0 341 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 6964 0 5526 90 0 90 90 0 8 0 ffsino 240 6964 0 5526 85 0 85 85 0 8 0 nchpl 144 13042 0 11417 63 0 63 63 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 224 5926 0 0 349 0 349 349 0 8 0 namei 1024 45889 0 45889 5 4 1 2 0 8 1 vcpupl 1984 6 0 1 1 0 1 1 0 8 0 vmpool 528 24 0 19 2 1 1 1 0 8 0 pfiaddrpl 120 54 0 46 2 1 1 1 0 8 0 scxspl 216 40697 0 40697 14 13 1 8 0 8 1 plimitpl 152 473 0 459 1 0 1 1 0 8 0 sigapl 424 4563 0 4500 9 1 8 8 0 8 1 futexpl 64 42559 0 42551 3 2 1 1 0 8 0 knotepl 120 66588 0 66508 22 15 7 7 0 8 3 kqueuepl 184 826 0 818 16 15 1 4 0 8 0 pipepl 304 767 0 738 20 17 3 8 0 8 0 fdescpl 432 4529 0 4500 4 0 4 4 0 8 0 filepl 120 36257 0 35851 60 46 14 15 0 8 1 lockfpl 104 2220 0 2218 5 4 1 2 0 8 0 lockfspl 48 396 0 394 1 0 1 1 0 8 0 sessionpl 144 28 0 12 1 0 1 1 0 8 0 pgrppl 48 31 0 15 1 0 1 1 0 8 0 ucredpl 96 3433 0 3423 1 0 1 1 0 8 0 zombiepl 144 4500 0 4500 2 1 1 1 0 8 1 processpl 1000 4563 0 4500 8 0 8 8 0 8 0 procpl 672 11184 0 11102 20 13 7 8 0 8 0 sosppl 168 20 0 20 5 5 0 1 0 8 0 sockpl 448 13017 0 12928 185 174 11 26 0 8 1 mcl64k 65536 227 0 227 9 8 1 1 0 8 1 mcl16k 16384 132 0 132 8 7 1 1 0 8 1 mcl12k 12288 128 0 128 10 9 1 1 0 8 1 mcl9k 9216 52 0 52 13 12 1 1 0 8 1 mcl8k 8192 312 0 312 10 9 1 1 0 8 1 mcl4k 4096 452 0 452 7 6 1 1 0 8 1 mcl2k2 2112 36 0 36 9 9 0 1 0 8 0 mcl2k 2048 85153 0 85099 20 12 8 13 0 8 0 mtagpl 96 883 0 575 13 2 11 11 0 8 0 mbufpl 256 172300 0 171782 55 15 40 47 0 8 0 bufpl 288 10911 0 4504 458 0 458 458 0 8 0 anonpl 24 1295811 0 1275963 248 120 128 155 0 188 1 amapchunkpl 152 129824 0 128961 79 45 34 43 0 158 0 amappl16 200 15422 0 14707 126 88 38 51 0 8 0 amappl15 192 505 0 501 1 0 1 1 0 8 0 amappl14 184 1007 0 999 1 0 1 1 0 8 0 amappl13 176 112 0 110 1 0 1 1 0 8 0 amappl12 168 10 0 8 2 1 1 1 0 8 0 amappl11 160 685 0 669 1 0 1 1 0 8 0 amappl10 152 1277 0 1268 1 0 1 1 0 8 0 amappl9 144 682 0 679 1 0 1 1 0 8 0 amappl8 136 1687 0 1616 3 0 3 3 0 8 0 amappl7 128 1095 0 1080 1 0 1 1 0 8 0 amappl6 120 458 0 439 2 1 1 2 0 8 0 amappl5 112 5375 0 5356 1 0 1 1 0 8 0 amappl4 104 2116 0 2079 2 0 2 2 0 8 0 amappl3 96 383 0 372 1 0 1 1 0 8 0 amappl2 88 773 0 726 3 1 2 3 0 8 0 amappl1 80 82092 0 81507 21 8 13 18 0 8 0 amappl 88 53105 0 52842 9 2 7 7 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 4553 0 4519 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 4553 0 4519 1 0 1 1 0 8 0 vmmpekpl 168 32748 0 32695 3 0 3 3 0 8 0 vmmpepl 168 411335 0 408553 224 99 125 136 0 357 3 vmsppl 272 4552 0 4519 5 2 3 3 0 8 0 rwobjpl 24 105800 0 98055 48 0 48 48 0 8 0 pdppl 4096 9112 0 9043 232 162 70 74 0 8 1 pvpl 32 2215402 0 2191508 398 195 203 262 0 265 1 pmappl 216 4552 0 4519 2 0 2 2 0 8 0 extentpl 40 58 0 38 1 0 1 1 0 8 0 phpool 112 1294 0 482 24 0 24 24 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