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 0xffffffff82df3000 end+0x1f3000 rsi 0xffff8000230fdce0 rbp 0 rbx 0 rdx 0 rcx 0xfffffd8068427520 rax 0x23 r8 0 r9 0 r10 0x5797925de93db87e r11 0xca5943ef776ed045 r12 0xffff8000230fdce0 r13 0xffff80002e7de000 r14 0xffff8000230fd500 r15 0xffff8000230fdce0 rip 0xffffffff812701e7 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.6) pid=171920 stat=onproc flags process=0 proc=0 pri=81, usrpri=81, nice=20 forw=0xffffffffffffffff, list=0xffff8000230fcd20,0xffff8000230fd510 process=0xffff800027f53b90 user=0xffff80002e7de000, vmspace=0xfffffd806c4859a0 estcpu=36, cpticks=1, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 17211 93486 63672 0 2 0 syz-executor.3 17211 374559 63672 0 2 0x4000000 syz-executor.3 47744 167977 71846 0 2 0 syz-executor.0 47744 355102 71846 0 3 0x4000080 fsleep syz-executor.0 *24648 171920 41159 0 7 0 syz-executor.6 24648 32025 41159 0 3 0x4000080 fsleep syz-executor.6 47196 430298 62023 0 2 0 syz-executor.7 47196 262561 62023 0 3 0x4000080 fsleep syz-executor.7 47196 225965 62023 0 3 0x4000080 fsleep syz-executor.7 15491 214335 3864 0 2 0 syz-executor.1 15491 53575 3864 0 3 0x4000080 fsleep syz-executor.1 95304 183083 54562 0 3 0x2 biowait syz-executor.4 95482 423987 54562 0 3 0x2 biowait syz-executor.2 41159 254991 54562 0 3 0x82 nanoslp syz-executor.6 74292 126883 1 0 3 0x100083 ttyin getty 3864 445768 54562 0 3 0x82 nanoslp syz-executor.1 71846 435979 54562 0 3 0x82 nanoslp syz-executor.0 86771 271642 54562 0 3 0x2 biowait syz-executor.5 63672 79343 54562 0 2 0x2 syz-executor.3 62023 219504 54562 0 3 0x82 nanoslp syz-executor.7 71192 429216 0 0 3 0x14280 nfsidl nfsio 97695 240075 0 0 3 0x14280 nfsidl nfsio 4708 84930 0 0 3 0x14280 nfsidl nfsio 22920 172973 0 0 3 0x14280 nfsidl nfsio 61030 159057 0 0 3 0x14280 nfsidl nfsio 48010 156390 0 0 3 0x14280 nfsidl nfsio 93716 183052 0 0 3 0x14200 bored sosplice 54562 514053 15014 0 3 0x82 thrsleep syz-fuzzer 54562 40876 15014 0 3 0x4000082 nanoslp syz-fuzzer 54562 264319 15014 0 3 0x4000082 thrsleep syz-fuzzer 54562 257338 15014 0 3 0x4000082 thrsleep syz-fuzzer 54562 319152 15014 0 3 0x4000082 thrsleep syz-fuzzer 54562 189252 15014 0 3 0x4000082 thrsleep syz-fuzzer 54562 198516 15014 0 3 0x4000082 thrsleep syz-fuzzer 54562 161764 15014 0 3 0x4000082 kqread syz-fuzzer 54562 181155 15014 0 3 0x4000082 thrsleep syz-fuzzer 15014 396630 46989 0 3 0x10008a sigsusp ksh 46989 47299 97436 0 3 0x9a poll sshd 97436 303703 1 0 3 0x88 poll sshd 97151 143710 32951 73 3 0x100090 kqread syslogd 32951 120631 1 0 3 0x100082 netio syslogd 32482 230033 1 0 3 0x100080 kqread resolvd 25741 205901 7201 77 3 0x100092 kqread dhcpleased 19177 505056 7201 77 3 0x100092 kqread dhcpleased 7201 14309 1 0 3 0x80 kqread dhcpleased 29398 65005 0 0 3 0x14200 bored smr 29114 431116 0 0 2 0x14200 zerothread 33 397773 0 0 3 0x14200 aiodoned aiodoned 60654 97352 0 0 3 0x14200 syncer update 36435 164020 0 0 3 0x14200 cleaner cleaner 30715 191378 0 0 3 0x14200 reaper reaper 26766 509003 0 0 3 0x14200 pgdaemon pagedaemon 46461 84054 0 0 3 0x14200 bored viomb 69249 101277 0 0 3 0x40014200 acpi0 acpi0 9522 274201 0 0 3 0x14200 bored softnet 37004 234190 0 0 3 0x14200 bored systqmp 54169 5016 0 0 3 0x14200 bored systq 63092 471592 0 0 3 0x40014200 bored softclock 20404 28302 0 0 3 0x40014200 idle0 1 513965 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 10217 6567K 7675K 78643K 51483 0 pcb 13 16K 20K 78643K 2209 0 rtable 246 23K 23K 78643K 2945 0 ifaddr 99 21K 21K 78643K 4449 0 sysctl 2 0K 0K 78643K 2 0 counters 27 17K 17K 78643K 98 0 ioctlops 0 0K 4K 78643K 5714 0 iov 0 0K 18K 78643K 835 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1505 94K 94K 78643K 13333 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 2 1K 9K 78643K 50 0 VM map 2 0K 0K 78643K 2 0 sem 12 1K 1K 78643K 1434 0 dirhash 12 2K 2K 78643K 12 0 ACPI 1697 195K 286K 78643K 12598 0 file desc 15 53K 81K 78643K 9121 0 sigio 0 0K 0K 78643K 104 0 proc 58 55K 79K 78643K 1492 0 subproc 104 6K 6K 78643K 494 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 2 0K 0K 78643K 2527 0 in_multi 84 5K 7K 78643K 750 0 ether_multi 1 0K 0K 78643K 87 0 mrt 1 0K 0K 78643K 21 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 289 1288K 1288K 78643K 289 0 exec 0 0K 2K 78643K 1827 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 419 478K 491K 78643K 111051 0 UVM aobj 131 7K 7K 78643K 138 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 1423 0 NDP 13 0K 1K 78643K 181 0 temp 142 4709K 66405K 78643K 83224 0 kqueue 13 15K 20K 78643K 249 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 120 983 0 980 7 6 1 3 0 8 0 rtentry 112 544 0 452 4 1 3 4 0 8 0 unpcb 136 8763 0 8750 82 77 5 9 0 8 4 syncache 296 48 0 48 12 12 0 1 0 8 0 tcpqe 32 8 0 8 4 4 0 1 0 8 0 tcpcb 736 3166 0 3161 124 123 1 14 0 8 0 arp 88 79 0 63 1 0 1 1 0 8 0 ipq 40 21 0 21 6 6 0 1 0 8 0 ipqe 40 591 0 591 6 6 0 1 0 8 0 inpcb 304 10795 0 10786 159 153 6 17 0 8 5 rttmr 72 7 0 6 2 1 1 1 0 8 0 ip6q 72 2 0 2 1 1 0 1 0 8 0 ip6af 40 3 0 3 1 1 0 1 0 8 0 nd6 48 152 0 131 1 0 1 1 0 8 0 pkpcb 40 3 0 3 1 1 0 1 0 8 0 kcovpl 48 38 0 30 1 0 1 1 0 8 0 ppxss 1152 15 0 15 5 5 0 1 0 8 0 pfstscr 40 12 0 10 1 0 1 1 0 8 0 pfosfp 40 3 0 2 1 0 1 1 0 8 0 pfosfpen 112 3 0 2 1 0 1 1 0 8 0 pfrktable 1344 627 0 612 3 1 2 2 0 8 0 pftag 88 109 0 102 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 112 24 0 20 1 0 1 1 0 8 0 pfstate 320 12 0 10 1 0 1 1 0 8 0 pfrule 1360 1977 0 1655 28 1 27 27 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2314 0 1879 41 13 28 31 0 8 0 art_table 32 2315 0 1879 4 0 4 4 0 8 0 art_node 16 536 0 455 1 0 1 1 0 8 0 sysvmsgpl 40 28 0 16 1 0 1 1 0 8 0 semapl 112 1432 0 1422 1 0 1 1 0 8 0 shmpl 112 135 0 7 5 1 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 14060 0 12586 93 0 93 93 0 8 0 ffsino 240 14060 0 12586 87 0 87 87 0 8 0 nchpl 144 25460 0 23836 62 0 62 62 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 98827 0 98825 3 2 1 2 0 8 0 vcpupl 1984 62 0 1 8 0 8 8 0 8 0 vmpool 528 76 0 15 5 0 5 5 0 8 0 pfiaddrpl 120 2382 0 2354 2 1 1 1 0 8 0 scsiplug 72 3 0 3 1 1 0 1 0 8 0 scxspl 216 82576 0 82573 23 22 1 8 0 8 0 plimitpl 152 881 0 867 1 0 1 1 0 8 0 sigapl 424 9365 0 9319 9 3 6 8 0 8 0 futexpl 64 94854 0 94849 1 0 1 1 0 8 0 knotepl 112 7040 0 6966 4 0 4 4 0 8 0 kqueuepl 184 1692 0 1683 27 26 1 4 0 8 0 pipepl 304 1774 0 1746 49 46 3 8 0 8 0 fdescpl 432 9330 0 9304 4 0 4 4 0 8 0 filepl 120 77748 0 77510 125 112 13 23 0 8 5 lockfpl 104 2150 0 2148 5 4 1 2 0 8 0 lockfspl 48 496 0 494 1 0 1 1 0 8 0 sessionpl 144 54 0 38 1 0 1 1 0 8 0 pgrppl 48 69 0 53 1 0 1 1 0 8 0 ucredpl 96 13354 0 13342 1 0 1 1 0 8 0 zombiepl 144 9319 0 9319 1 0 1 1 0 8 1 processpl 1000 9365 0 9319 9 2 7 9 0 8 0 procpl 672 22717 0 22657 32 25 7 9 0 8 0 sosppl 168 45 0 45 9 8 1 1 0 8 1 sockpl 448 20544 0 20519 433 422 11 30 0 8 8 mcl64k 65536 337 0 337 24 24 0 1 0 8 0 mcl16k 16384 56 0 56 9 9 0 1 0 8 0 mcl12k 12288 277 0 277 28 28 0 1 0 8 0 mcl9k 9216 117 0 117 24 24 0 1 0 8 0 mcl8k 8192 535 0 535 23 22 1 1 0 8 1 mcl4k 4096 1012 0 1012 10 9 1 1 0 8 1 mcl2k2 2112 478 0 478 20 19 1 1 0 8 1 mcl2k 2048 91301 0 91255 31 24 7 22 0 8 0 mtagpl 96 10698 0 9369 50 7 43 46 0 8 0 mbufpl 256 229126 0 226228 363 149 214 247 0 8 0 bufpl 288 18427 0 12022 458 0 458 458 0 8 0 anonpl 24 2589566 0 2571957 253 121 132 151 0 188 0 amapchunkpl 152 286538 0 285811 132 99 33 46 0 158 0 amappl16 200 29100 0 28327 159 115 44 63 0 8 0 amappl15 192 218 0 212 1 0 1 1 0 8 0 amappl14 184 866 0 862 1 0 1 1 0 8 0 amappl13 176 2051 0 2047 1 0 1 1 0 8 0 amappl12 168 1436 0 1431 1 0 1 1 0 8 0 amappl11 160 1375 0 1365 1 0 1 1 0 8 0 amappl10 152 1309 0 1305 4 3 1 1 0 8 0 amappl9 144 525 0 522 1 0 1 1 0 8 0 amappl8 136 3160 0 3064 4 0 4 4 0 8 0 amappl7 128 2143 0 2131 1 0 1 1 0 8 0 amappl6 120 382 0 358 2 1 1 2 0 8 0 amappl5 112 8862 0 8845 1 0 1 1 0 8 0 amappl4 104 3561 0 3531 2 0 2 2 0 8 0 amappl3 96 2223 0 2210 1 0 1 1 0 8 0 amappl2 88 3672 0 3617 3 1 2 3 0 8 0 amappl1 80 164723 0 164181 18 5 13 18 0 8 0 amappl 88 109903 0 109647 8 1 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 72 137 0 7 4 1 3 3 0 8 0 uaddrrnd 24 9406 0 9319 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 9406 0 9319 1 0 1 1 0 8 0 vmmpekpl 168 65433 0 65373 4 0 4 4 0 8 0 vmmpepl 168 849339 0 846583 326 185 141 147 0 357 5 vmsppl 272 9405 0 9319 7 1 6 6 0 8 0 rwobjpl 24 203974 0 196166 53 4 49 50 0 8 0 pdppl 4096 18818 0 18699 703 579 124 125 0 8 5 pvpl 32 4313666 0 4293343 455 259 196 257 0 265 0 pmappl 216 9405 0 9319 5 0 5 5 0 8 0 extentpl 40 57 0 38 1 0 1 1 0 8 0 phpool 112 2444 0 1380 32 0 32 32 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