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 0xffff8000ffffefc0 rsi 0xffff8000216efce0 rbp 0 rbx 0 rdx 0 rcx 0 rax 0x7 r8 0 r9 0 r10 0xc73924b3ffb7665c r11 0x48648b7d0d04d1f4 r12 0xffff8000216efce0 r13 0xffff8000216e8000 r14 0xffff8000ffffefc0 r15 0xffff8000216efce0 rip 0xffffffff81c341e7 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.0) pid=354552 stat=onproc flags process=10 proc=0 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff8000216ee000,0xffff8000216ee2b0 process=0xffff8000216f6038 user=0xffff8000216e8000, vmspace=0xfffffd806b102010 estcpu=36, cpticks=2, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND *52953 354552 43661 0 7 0x10 syz-executor.0 52953 401393 43661 0 3 0x4000090 fsleep syz-executor.0 52953 491318 43661 0 3 0x4000090 fsleep syz-executor.0 52953 474644 43661 0 3 0x4000090 fsleep syz-executor.0 77034 54240 0 0 3 0x14280 nfsidl nfsio 92253 457888 0 0 3 0x14280 nfsidl nfsio 71272 195854 0 0 3 0x14280 nfsidl nfsio 1431 202910 0 0 3 0x14280 nfsidl nfsio 51343 499259 0 0 3 0x14280 nfsidl nfsio 37622 448213 0 0 3 0x14280 nfsidl nfsio 40427 411094 0 0 3 0x14280 nfsidl nfsio 18003 519040 0 0 3 0x14280 nfsidl nfsio 13140 282971 0 0 3 0x14280 nfsidl nfsio 55009 290395 0 0 3 0x14280 nfsidl nfsio 20174 106909 0 0 3 0x14280 nfsidl nfsio 50943 372629 0 0 3 0x14280 nfsidl nfsio 12625 390157 0 0 3 0x14280 nfsidl nfsio 36547 101543 0 0 3 0x14280 nfsidl nfsio 12028 150517 0 0 3 0x14280 nfsidl nfsio 23382 252450 0 0 3 0x14280 nfsidl nfsio 34468 422227 0 0 3 0x14280 nfsidl nfsio 69128 384471 0 0 3 0x14280 nfsidl nfsio 61045 72174 0 0 3 0x14280 nfsidl nfsio 26442 314249 0 0 3 0x14280 nfsidl nfsio 43661 108981 87871 0 3 0x82 nanoslp syz-executor.0 56481 431637 1 0 3 0x100083 ttyin getty 36740 511028 87871 0 3 0x82 nanoslp syz-executor.1 9860 112444 0 0 3 0x14200 acct acct 75037 395335 0 0 3 0x14200 bored sosplice 87871 125482 18968 0 3 0x82 thrsleep syz-fuzzer 87871 274025 18968 0 3 0x4000082 thrsleep syz-fuzzer 87871 111145 18968 0 3 0x4000082 thrsleep syz-fuzzer 87871 389127 18968 0 3 0x4000082 kqread syz-fuzzer 87871 137258 18968 0 3 0x4000082 thrsleep syz-fuzzer 87871 133608 18968 0 3 0x4000082 thrsleep syz-fuzzer 18968 453190 57248 0 3 0x10008a sigsusp ksh 57248 374478 96204 0 3 0x9a kqread sshd 96204 339034 1 0 3 0x88 kqread sshd 38808 15965 34140 73 3 0x100090 kqread syslogd 34140 497876 1 0 3 0x100082 netio syslogd 5117 170058 1 0 3 0x100080 kqread resolvd 8253 439860 90107 77 3 0x100092 kqread dhcpleased 20934 347724 90107 77 3 0x100092 kqread dhcpleased 90107 211722 1 0 3 0x80 kqread dhcpleased 42112 518997 0 0 3 0x14200 bored smr 7817 365784 0 0 2 0x14200 zerothread 45438 247027 0 0 3 0x14200 aiodoned aiodoned 69222 514734 0 0 3 0x14200 syncer update 59178 123391 0 0 3 0x14200 cleaner cleaner 13257 187549 0 0 3 0x14200 reaper reaper 76774 135792 0 0 3 0x14200 pgdaemon pagedaemon 36609 126698 0 0 3 0x14200 bored viomb 96949 222755 0 0 3 0x40014200 acpi0 acpi0 1445 389400 0 0 3 0x14200 bored softnet 3171 453819 0 0 3 0x14200 bored systqmp 202 520984 0 0 3 0x14200 bored systq 79110 490784 0 0 3 0x40014200 bored softclock 6141 195720 0 0 3 0x40014200 idle0 1 37146 0 0 3 0x80082 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 10115 6388K 7555K 78643K 16650 0 pcb 13 10K 12K 78643K 409 0 rtable 131 17K 18K 78643K 950 0 ifaddr 50 14K 16K 78643K 515 0 sysctl 3 1K 1K 78643K 4 0 counters 21 16K 17K 78643K 95 0 ioctlops 0 0K 4K 78643K 2331 0 iov 0 0K 16K 78643K 450 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1228 77K 77K 78643K 3272 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 5K 78643K 25 0 VM map 2 0K 0K 78643K 2 0 sem 12 0K 0K 78643K 365 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 5 13K 25K 78643K 9317 0 sigio 0 0K 0K 78643K 13 0 proc 59 55K 71K 78643K 659 0 subproc 26 1K 1K 78643K 122 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 308 0 in_multi 30 2K 2K 78643K 306 0 ether_multi 1 0K 0K 78643K 78 0 mrt 1 0K 0K 78643K 18 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 73 334K 334K 78643K 73 0 exec 0 0K 2K 78643K 827 0 pfkey data 0 0K 1K 78643K 1 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 244 84K 147K 78643K 111156 0 UVM aobj 52 2K 2K 78643K 58 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 284 0 NDP 5 0K 0K 78643K 97 0 temp 84 4203K 4278K 78643K 57984 0 kqueue 12 18K 38K 78643K 368 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 120 302 0 299 3 2 1 3 0 8 0 rtentry 112 138 0 98 2 0 2 2 0 8 0 unpcb 128 5736 0 5721 28 19 9 9 0 8 8 syncache 296 104 0 104 12 12 0 1 0 8 0 tcpqe 32 40 0 40 5 5 0 1 0 8 0 tcpcb 736 1063 0 1059 31 28 3 6 0 8 2 arp 88 26 0 17 1 0 1 1 0 8 0 ipq 40 5 0 5 2 2 0 1 0 8 0 ipqe 40 220 0 220 2 2 0 1 0 8 0 inpcb 304 2560 0 2553 18 16 2 6 0 8 1 rttmr 72 1 0 1 1 1 0 1 0 8 0 ip6q 72 1 0 1 1 1 0 1 0 8 0 ip6af 40 1 0 1 1 1 0 1 0 8 0 nd6 48 27 0 21 1 0 1 1 0 8 0 pkpcb 40 20 0 20 6 6 0 1 0 8 0 kcovpl 48 9 0 7 1 0 1 1 0 8 0 ppxss 1152 27 0 27 6 6 0 1 0 8 0 pfstscr 40 47 0 47 2 2 0 1 0 8 0 pffrag 232 15 0 15 1 1 0 1 0 482 0 pffrnode 88 15 0 15 1 1 0 1 0 8 0 pffrent 40 221 0 221 2 2 0 1 0 8 0 pfrktable 1344 198 0 186 2 1 1 2 0 8 0 pftag 88 43 0 41 3 2 1 1 0 8 0 pfstitem 24 31 0 31 2 2 0 1 0 8 0 pfstkey 112 64 0 64 2 2 0 1 0 8 0 pfstate 320 34 0 34 2 2 0 1 0 8 0 pfsrctr 152 245 0 244 1 0 1 1 0 8 0 pfrule 1360 142 0 103 4 0 4 4 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 572 0 401 12 1 11 12 0 8 0 art_table 32 573 0 401 2 0 2 2 0 8 0 art_node 16 137 0 105 1 0 1 1 0 8 0 sysvmsgpl 40 19 0 4 1 0 1 1 0 8 0 semupl 112 10 0 10 1 1 0 1 0 8 0 semapl 112 363 0 353 1 0 1 1 0 8 0 shmpl 112 55 0 6 2 0 2 2 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12414 0 11017 88 0 88 88 0 8 0 ffsino 240 12414 0 11017 83 0 83 83 0 8 0 nchpl 144 23422 0 21831 60 0 60 60 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 70279 0 70279 1 0 1 1 0 8 1 vcpupl 1984 10 0 3 2 1 1 2 0 8 0 vmpool 528 28 0 21 2 1 1 1 0 8 0 pfiaddrpl 120 67 0 47 1 0 1 1 0 8 0 scsiplug 72 8 0 8 3 3 0 1 0 8 0 scxspl 216 67796 0 67796 13 12 1 8 0 8 1 plimitpl 152 218 0 210 1 0 1 1 0 8 0 sigapl 424 9548 0 9497 6 0 6 6 0 8 0 futexpl 64 62522 0 62519 1 0 1 1 0 8 0 knotepl 112 69647 0 69604 3 1 2 3 0 8 0 kqueuepl 184 927 0 919 7 4 3 4 0 8 2 pipepl 304 787 0 777 21 20 1 6 0 8 0 fdescpl 432 9513 0 9497 4 2 2 3 0 8 0 filepl 120 42960 0 42857 40 29 11 11 0 8 7 lockfpl 104 14530 0 14528 13 11 2 4 0 8 1 lockfspl 48 1374 0 1372 1 0 1 1 0 8 0 sessionpl 144 26 0 16 1 0 1 1 0 8 0 pgrppl 48 1342 0 1332 1 0 1 1 0 8 0 ucredpl 96 5351 0 5340 1 0 1 1 0 8 0 zombiepl 144 9497 0 9496 1 0 1 1 0 8 0 processpl 1000 9548 0 9496 8 1 7 7 0 8 0 procpl 672 20100 0 20040 12 6 6 7 0 8 1 sosppl 168 37 0 37 7 7 0 1 0 8 0 sockpl 448 8635 0 8610 140 128 12 30 0 8 9 mcl64k 65536 239 0 239 21 20 1 1 0 8 1 mcl16k 16384 91 0 91 11 10 1 1 0 8 1 mcl12k 12288 114 0 114 15 14 1 1 0 8 1 mcl9k 9216 61 0 61 14 14 0 1 0 8 0 mcl8k 8192 199 0 199 18 17 1 1 0 8 1 mcl4k 4096 419 0 419 16 15 1 1 0 8 1 mcl2k2 2112 24 0 24 13 12 1 1 0 8 1 mcl2k 2048 43320 0 43277 57 48 9 13 0 8 2 mtagpl 96 583 0 449 7 2 5 6 0 8 0 mbufpl 256 159277 0 158837 351 313 38 287 0 8 0 bufpl 288 15572 0 9173 458 0 458 458 0 8 0 anonpl 24 2475540 0 2463831 196 122 74 113 0 188 2 amapchunkpl 152 271048 0 270605 66 47 19 30 0 158 1 amappl16 200 24295 0 23904 92 71 21 41 0 8 0 amappl15 192 88 0 83 1 0 1 1 0 8 0 amappl14 184 2301 0 2296 1 0 1 1 0 8 0 amappl13 176 4302 0 4301 1 0 1 1 0 8 0 amappl12 168 6 0 4 1 0 1 1 0 8 0 amappl11 160 366 0 352 1 0 1 1 0 8 0 amappl10 152 268 0 263 1 0 1 1 0 8 0 amappl9 144 671 0 669 1 0 1 1 0 8 0 amappl8 136 2272 0 2185 4 0 4 4 0 8 0 amappl7 128 1763 0 1757 1 0 1 1 0 8 0 amappl6 120 516 0 504 1 0 1 1 0 8 0 amappl5 112 9522 0 9504 1 0 1 1 0 8 0 amappl4 104 1336 0 1307 1 0 1 1 0 8 0 amappl3 96 390 0 374 1 0 1 1 0 8 0 amappl2 88 14021 0 13976 2 0 2 2 0 8 0 amappl1 80 149568 0 149156 13 3 10 12 0 8 0 amappl 88 110545 0 110408 4 0 4 4 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 57 0 6 1 0 1 1 0 8 0 uaddrrnd 24 9541 0 9518 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9541 0 9518 1 0 1 1 0 8 0 vmmpekpl 168 45960 0 45932 2 0 2 2 0 8 0 vmmpepl 168 824809 0 823198 174 99 75 89 0 357 1 vmsppl 272 9540 0 9518 3 1 2 2 0 8 0 rwobjpl 24 186123 0 179012 46 2 44 46 0 8 0 pdppl 4096 19088 0 19043 74 27 47 52 0 8 2 pvpl 32 4222664 0 4209905 318 210 108 173 0 265 3 pmappl 216 9540 0 9518 3 1 2 2 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 1375 0 610 31 7 24 29 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