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 0xffffffff83f66000 end+0x366000 rsi 0xffff8000314c7a18 rbp 0 rbx 0 rdx 0 rcx 0xfffffd805e0947a8 rax 0x1b r8 0xffffffffffffffff r9 0 r10 0x57c02ff535f0f7d1 r11 0x90384e94198340f3 r12 0xffff8000314c7a18 r13 0xffff80002f0ba000 r14 0xffff8000314c7780 r15 0xffff8000314c7a18 rip 0xffffffff8281b1dc 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=199593 pid=80789 tcnt=3 stat=onproc flags process=0 proc=4000080 runpri=32, usrpri=83, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000314c7780,0xffff8000314c6fc8 process=0xffff8000ffff9698 user=0xffff80002f0ba000, vmspace=0xfffffd806cd06740 estcpu=33, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 40558 502591 54378 0 2 0 syz-executor 40558 13841 54378 0 3 0x4000000 biowait syz-executor 60342 354538 81014 0 2 0 syz-executor 60342 513944 81014 0 3 0x4000080 fsleep syz-executor 60866 263347 92595 0 2 0 syz-executor 60866 477416 92595 0 3 0x4000080 pppxread syz-executor 60866 217230 92595 0 3 0x4000000 biowait syz-executor 80789 197948 40788 0 2 0 syz-executor *80789 199593 40788 0 7 0x4000080 syz-executor 80789 464513 40788 0 3 0x4000080 fsleep syz-executor 11482 272113 5262 0 2 0 syz-executor 11482 338284 5262 0 3 0x4000080 fsleep syz-executor 38760 395028 13210 0 3 0x80 nanoslp syz-executor 38760 456863 13210 0 3 0x4000080 bell syz-executor 38760 209507 13210 0 3 0x4000080 fsleep syz-executor 38760 420043 13210 0 3 0x4000080 rest syz-executor 83371 470748 99980 0 3 0x82 nanoslp syz-executor 19438 137347 99980 0 3 0x2 biowait syz-executor 92595 370332 99980 0 3 0x82 nanoslp syz-executor 81014 511578 99980 0 3 0x82 nanoslp syz-executor 54378 171357 99980 0 3 0x82 nanoslp syz-executor 5262 351417 99980 0 3 0x82 nanoslp syz-executor 40788 289626 99980 0 3 0x82 nanoslp syz-executor 13210 82119 99980 0 3 0x82 nanoslp syz-executor 99980 110695 86396 0 3 0x82 kqread syz-executor 86396 126771 59326 0 3 0x10008a sigsusp ksh 59326 121048 9887 0 3 0x98 kqread sshd-session 9887 180514 63519 0 3 0x92 kqread sshd-session 58687 170356 1 0 3 0x100083 ttyopn getty 63519 302111 1 0 3 0x88 kqread sshd 42637 13473 87643 73 3 0x1100090 kqread syslogd 87643 441475 1 0 3 0x100082 sbwait syslogd 74481 298996 1 0 3 0x100080 kqread resolvd 77318 401034 60848 77 3 0x100092 kqread dhcpleased 94034 474903 60848 77 3 0x100092 kqread dhcpleased 60848 316219 1 0 3 0x80 kqread dhcpleased 55287 472323 0 0 3 0x14200 bored smr 25679 256679 0 0 2 0x14200 zerothread 11368 27429 0 0 3 0x14200 aiodoned aiodoned 57015 314388 0 0 3 0x14200 syncer update 74797 155998 0 0 3 0x14200 cleaner cleaner 92722 35399 0 0 3 0x14200 reaper reaper 11737 191204 0 0 3 0x14200 pgdaemon pagedaemon 62776 384084 0 0 3 0x14200 bored viomb 93872 19237 0 0 3 0x40014200 acpi0 acpi0 31887 131510 0 0 3 0x14200 bored softnet0 76761 27470 0 0 3 0x14200 bored systqmp 46865 438294 0 0 3 0x14200 bored systq 65247 437287 0 0 3 0x40014200 tmoslp softclock 49659 220226 0 0 3 0x40014200 idle0 1 368155 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11081 12141K 12704K 166960K 13991 0 pcb 17 16K 18K 166960K 562 0 rtable 238 12K 12K 166960K 700 0 pf 35 14K 17K 166960K 135 0 ifaddr 39 6K 7K 166960K 107 0 ifgroup 54 2K 2K 166960K 170 0 sysctl 4 1K 9K 166960K 16 0 counters 34 17K 18K 166960K 95 0 ioctlops 0 0K 4K 166960K 370 0 iov 0 0K 24K 166960K 46 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1379 87K 87K 166960K 2493 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 11 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 52 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 110K 166960K 1225 0 sigio 0 0K 0K 166960K 25 0 proc 60 59K 108K 166960K 720 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 254 0 in_multi 85 6K 7K 166960K 167 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 26 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 223 996K 996K 166960K 223 0 exec 0 0K 1K 166960K 659 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 224 154K 171K 166960K 12143 0 UVM aobj 32 16K 18K 166960K 40 0 pinsyscall 38 76K 90K 166960K 2413 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 89 0 NDP 12 0K 2K 166960K 74 0 temp 81 9076K 9142K 166960K 62431 0 kqueue 13 20K 33K 166960K 213 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 120 214 0 211 3 0 3 3 0 8 2 rtentry 136 186 0 93 4 0 4 4 0 8 0 unpcb 144 709 0 692 4 0 4 4 0 8 3 syncache 336 7 0 7 1 0 1 1 0 8 1 tcpqe 32 2 0 2 1 0 1 1 0 8 1 tcpcb 736 430 0 424 7 0 7 7 0 8 6 arp 96 29 0 13 1 0 1 1 0 8 0 ipq 40 6 0 0 1 0 1 1 0 8 0 ipqe 40 137 0 129 1 0 1 1 0 8 0 inpcb 328 1463 0 1454 12 2 10 12 0 8 8 ip6q 72 21 0 16 1 0 1 1 0 8 0 ip6af 40 38 0 32 1 0 1 1 0 8 0 nd6 112 42 0 17 1 0 1 1 0 8 0 pkpcb 40 4 0 4 1 0 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 0 1 1 0 8 1 ppxss 1072 46 0 46 1 0 1 1 0 8 1 pppxif 1384 5 0 5 1 0 1 1 0 8 1 pfrktable 1344 3 0 2 1 0 1 1 0 8 0 pfstitem 24 4 0 0 1 0 1 1 0 8 0 pfstkey 128 12 0 8 1 0 1 1 0 8 0 pfstate 384 6 0 4 1 0 1 1 0 8 0 pfrule 1360 10 0 9 1 0 1 1 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 783 0 422 31 2 29 31 0 8 6 art_table 40 785 0 422 5 0 5 5 0 8 0 art_node 32 183 0 99 1 0 1 1 0 8 0 semupl 112 3 0 3 1 0 1 1 0 8 1 semapl 112 49 0 39 1 0 1 1 0 8 0 shmpl 112 30 0 7 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3712 0 2249 92 0 92 92 0 8 0 ffsino 256 3712 0 2249 92 0 92 92 0 8 0 nchpl 144 5326 0 3619 64 0 64 64 0 8 0 rtmask 32 10 0 10 1 0 1 1 0 8 1 vnodes 216 4407 0 0 245 0 245 245 0 8 0 namei 1024 18540 0 18539 2 0 2 2 0 8 1 vcpupl 3904 7 0 1 1 0 1 1 0 8 0 vmpool 808 7 0 1 1 0 1 1 0 8 0 kstatmem 264 100 0 76 3 0 3 3 0 8 1 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 4 0 4 1 0 1 1 0 8 1 scxspl 216 21391 0 21387 8 0 8 8 1 8 7 plimitpl 152 313 0 295 1 0 1 1 0 8 0 sigapl 424 1526 0 1484 8 0 8 8 0 8 3 knotepl 120 481056 0 481009 39 27 12 24 0 8 8 kqueuepl 184 353 0 343 3 0 3 3 0 8 2 pipepl 304 226 0 199 3 0 3 3 0 8 0 fdescpl 448 1488 0 1459 4 0 4 4 0 8 0 filepl 120 9607 0 9392 11 0 11 11 0 8 2 lockfpl 104 594 0 592 2 0 2 2 0 8 1 lockfspl 48 229 0 227 1 0 1 1 0 8 0 sessionpl 144 27 0 19 1 0 1 1 0 8 0 pgrppl 48 63 0 47 1 0 1 1 0 8 0 ucredpl 104 1697 0 1686 1 0 1 1 0 8 0 zombiepl 144 1485 0 1484 1 0 1 1 0 8 0 processpl 1152 1526 0 1484 5 0 5 5 0 8 1 procpl 664 3077 0 3025 7 0 7 7 0 8 1 sosppl 176 7 0 7 1 0 1 1 0 8 1 sockpl 552 2426 0 2397 12 1 11 12 0 8 8 mcl64k 65536 145 0 143 1 0 1 1 0 8 0 mcl16k 16384 7 0 7 1 0 1 1 0 8 1 mcl12k 12288 1 0 1 1 0 1 1 0 8 1 mcl9k 9216 1 0 1 1 0 1 1 0 8 1 mcl8k 8192 79 0 79 1 0 1 1 0 8 1 mcl4k 4096 3872 0 3820 16 1 15 16 0 8 7 mcl2k2 2112 4 0 4 1 0 1 1 0 8 1 mcl2k 2048 1246 0 1242 3 0 3 3 0 8 2 mtagpl 96 103 0 20 3 0 3 3 0 8 0 mbufpl 256 20414 0 20204 76 56 20 76 0 8 5 bufpl 280 6923 0 709 445 0 445 445 0 8 0 anonpl 24 223461 0 213198 75 0 75 75 0 187 2 amapchunkpl 152 40887 0 40239 37 0 37 37 0 158 11 amappl16 200 4627 0 4360 35 8 27 27 0 8 0 amappl15 192 4 0 4 1 0 1 1 0 8 1 amappl14 184 477 0 476 1 0 1 1 0 8 0 amappl13 176 129 0 119 1 0 1 1 0 8 0 amappl12 168 1754 0 1726 2 0 2 2 0 8 0 amappl11 160 6 0 6 1 0 1 1 0 8 1 amappl10 152 60 0 49 1 0 1 1 0 8 0 amappl9 144 260 0 259 1 0 1 1 0 8 0 amappl8 136 126 0 124 1 0 1 1 0 8 0 amappl7 128 154 0 143 1 0 1 1 0 8 0 amappl6 120 194 0 193 1 0 1 1 0 8 0 amappl5 112 182 0 174 1 0 1 1 0 8 0 amappl4 104 277 0 260 1 0 1 1 0 8 0 amappl3 96 8250 0 8150 4 0 4 4 0 8 1 amappl2 88 607 0 551 2 0 2 2 0 8 0 amappl1 80 14492 0 13949 15 0 15 15 0 8 2 amappl 88 11172 0 11012 5 0 5 5 0 92 0 uvmvnodes 80 141 0 0 3 0 3 3 0 8 0 dma4096 4096 1 0 1 1 0 1 1 0 8 1 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma256 256 6 0 6 1 0 1 1 0 8 1 dma128 128 255 0 255 1 0 1 1 0 8 1 dma64 64 7 0 7 1 0 1 1 0 8 1 dma32 32 7 0 7 1 0 1 1 0 8 1 dma16 16 18 0 17 1 0 1 1 0 8 0 aobjpl 72 39 0 8 1 0 1 1 0 8 0 uaddrrnd 24 1488 0 1459 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1488 0 1459 1 0 1 1 0 8 0 vmmpekpl 168 12467 0 12421 3 0 3 3 0 8 0 vmmpepl 168 100332 0 98314 102 0 102 102 0 357 2 vmsppl 368 1487 0 1459 4 0 4 4 0 8 1 rwobjpl 40 27691 0 26443 16 0 16 16 0 8 0 pdppl 4096 2996 0 2926 114 42 72 76 0 8 2 pvpl 32 653836 0 637776 158 0 158 158 0 265 13 pmappl 216 1494 0 1460 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 456 0 101 12 0 12 12 0 8 1 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