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 0xffffffff83e78000 end+0x478000 rsi 0xffff800036911248 rbp 0 rbx 0 rdx 0 rcx 0xfffffd807b8e4010 rax 0x1b r8 0x7f7fffffc000 r9 0 r10 0x7927d0d52623b39e r11 0xb7f157607f1d45ad r12 0xffff800036911248 r13 0xffff80003c980000 r14 0xffff8000369114e0 r15 0xffff800036911248 rip 0xffffffff8134c1dc 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=438868 pid=2571 tcnt=2 stat=onproc flags process=0 proc=0 runpri=86, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800036910550,0xffff8000369102c8 process=0xffff8000ffffb198 user=0xffff80003c980000, vmspace=0xfffffd807e794748 estcpu=36, cpticks=1, pctcpu=0.0, user=1, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND * 2571 438868 66434 0 7 0 syz-executor 2571 437854 66434 0 3 0x4000080 fsleep syz-executor 26683 437184 77108 0 2 0 syz-executor 26683 399352 77108 0 3 0x4000080 sbwait syz-executor 26683 244299 77108 0 3 0x4000080 sbwait syz-executor 26683 117486 77108 0 3 0x4000080 fsleep syz-executor 80034 406780 1606 0 3 0x80 nanoslp syz-executor 80034 317588 1606 0 3 0x4000080 sbwait syz-executor 80034 245992 1606 0 3 0x4000080 fsleep syz-executor 50145 156606 13312 0 3 0x80 nanoslp syz-executor 50145 468651 13312 0 3 0x4000080 fsleep syz-executor 50145 229293 13312 0 3 0x4000080 pipewr syz-executor 93279 144130 1 0 3 0x100083 ttyopn getty 35672 6192 38965 0 3 0x82 wait syz-executor 44125 419393 38965 0 3 0x82 nanoslp syz-executor 66434 401925 38965 0 3 0x82 nanoslp syz-executor 1606 337740 38965 0 3 0x82 nanoslp syz-executor 13312 217134 38965 0 3 0x82 nanoslp syz-executor 19041 157992 38965 0 3 0x2 biowait syz-executor 77108 396908 38965 0 3 0x82 nanoslp syz-executor 74222 293518 38965 0 3 0x82 nanoslp syz-executor 38965 317566 44063 0 3 0x82 kqread syz-executor 44063 338464 18070 0 3 0x10008a sigsusp ksh 18070 364407 54829 0 3 0x98 kqread sshd-session 54829 154804 26794 0 3 0x92 kqread sshd-session 26794 505502 1 0 3 0x88 kqread sshd 38820 87980 88620 73 3 0x1100090 kqread syslogd 88620 263320 1 0 3 0x100082 sbwait syslogd 2016 266990 1 0 3 0x100080 kqread resolvd 37604 502080 41483 77 3 0x100092 kqread dhcpleased 43595 308048 41483 77 3 0x100092 kqread dhcpleased 41483 337736 1 0 3 0x80 kqread dhcpleased 74160 376140 0 0 3 0x14200 bored smr 36960 97116 0 0 2 0x14200 zerothread 36925 158989 0 0 3 0x14200 aiodoned aiodoned 50672 352457 0 0 3 0x14200 syncer update 91011 152698 0 0 3 0x14200 cleaner cleaner 28660 362000 0 0 3 0x14200 reaper reaper 19257 71104 0 0 3 0x14200 pgdaemon pagedaemon 94825 275873 0 0 3 0x14200 bored viomb 3677 504313 0 0 3 0x40014200 acpi0 acpi0 27825 78407 0 0 3 0x14200 bored softnet0 47120 178983 0 0 3 0x14200 bored systqmp 3612 250880 0 0 3 0x14200 bored systq 1330 439301 0 0 3 0x40014200 tmoslp softclock 79516 262940 0 0 3 0x40014200 idle0 1 57337 0 0 3 0x80082 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 11074 12198K 12850K 166960K 13920 0 pcb 18 15K 17K 166960K 314 0 rtable 231 10K 10K 166960K 556 0 pf 35 14K 17K 166960K 138 0 ifaddr 41 7K 8K 166960K 89 0 ifgroup 57 2K 2K 166960K 136 0 sysctl 4 1K 9K 166960K 18 0 counters 34 17K 18K 166960K 92 0 ioctlops 0 0K 4K 166960K 310 0 iov 1 12K 24K 166960K 91 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1461 92K 92K 166960K 2388 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 105 0 dirhash 12 2K 2K 166960K 30 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 93K 166960K 962 0 sigio 0 0K 0K 166960K 13 0 proc 60 59K 91K 166960K 571 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 1 0K 0K 166960K 183 0 in_multi 88 6K 7K 166960K 138 0 ether_multi 1 0K 0K 166960K 10 0 mrt 2 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 265 1182K 1182K 166960K 265 0 exec 0 0K 1K 166960K 439 0 fusefs mount 1 32K 32K 166960K 1 0 pfkey data 0 0K 0K 166960K 34 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 221 150K 171K 166960K 10331 0 UVM aobj 61 6K 6K 166960K 68 0 pinsyscall 38 76K 94K 166960K 2058 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 60 0 NDP 12 0K 2K 166960K 57 0 temp 63 8668K 8741K 166960K 34708 0 kqueue 13 20K 32K 166960K 180 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 89 0 86 1 0 1 1 0 8 0 rtentry 136 138 0 48 4 0 4 4 0 8 0 unpcb 144 980 0 961 6 0 6 6 0 8 5 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpqe 32 3 0 3 1 0 1 1 0 8 1 tcpcb 736 357 0 350 7 0 7 7 0 8 6 arp 96 23 0 7 1 0 1 1 0 8 0 ipq 40 5 0 0 1 0 1 1 0 8 0 ipqe 40 72 0 67 1 0 1 1 0 8 0 inpcb 328 1009 0 997 7 0 7 7 0 8 5 ip6q 72 6 0 1 1 0 1 1 0 8 0 ip6af 40 7 0 2 1 0 1 1 0 8 0 nd6 112 26 0 4 1 0 1 1 0 8 0 pkpcb 40 8 0 8 1 0 1 1 0 8 1 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1072 51 0 51 1 0 1 1 0 8 1 pppxif 1384 6 0 6 1 0 1 1 0 8 1 pfstscr 40 1 0 1 1 0 1 1 0 8 1 pfstitem 24 6 0 4 1 0 1 1 0 8 0 pfstkey 128 9 0 6 1 0 1 1 0 8 0 pfstate 384 5 0 4 1 0 1 1 0 8 0 rttmr 136 1 0 1 1 0 1 1 0 8 1 art_heap8 4096 5 0 0 5 0 5 5 0 8 0 art_heap4 256 581 0 175 31 0 31 31 0 8 5 art_table 40 586 0 175 5 0 5 5 0 8 0 art_node 32 138 0 59 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 6 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 103 0 93 1 0 1 1 0 8 0 shmpl 112 60 0 4 2 0 2 2 0 8 0 dirhash 1024 29 0 12 3 0 3 3 0 8 0 dino2pl 256 3301 0 1806 95 0 95 95 0 8 0 ffsino 256 3301 0 1806 95 0 95 95 0 8 0 nchpl 144 4666 0 2972 64 0 64 64 0 8 0 rtmask 32 14 0 14 1 0 1 1 0 8 1 vnodes 216 3939 0 0 219 0 219 219 0 8 0 namei 1024 15810 0 15810 2 0 2 2 0 8 2 vcpupl 3904 3 0 1 1 0 1 1 0 8 0 vmpool 808 4 0 2 1 0 1 1 0 8 0 kstatmem 264 82 0 58 3 0 3 3 0 8 1 acpiwqpl 32 2 0 2 1 0 1 1 1 8 1 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 18557 0 18556 8 0 8 8 1 8 7 plimitpl 152 399 0 381 1 0 1 1 0 8 0 sigapl 424 1259 0 1217 6 0 6 6 0 8 1 knotepl 120 38615 0 38568 16 6 10 16 0 8 8 kqueuepl 184 314 0 305 1 0 1 1 0 8 0 pipepl 304 244 0 216 8 0 8 8 0 8 5 fdescpl 448 1241 0 1212 5 0 5 5 0 8 1 filepl 120 8337 0 8113 13 0 13 13 0 8 4 lockfpl 104 486 0 483 2 0 2 2 0 8 1 lockfspl 48 188 0 185 1 0 1 1 0 8 0 sessionpl 144 26 0 18 1 0 1 1 0 8 0 pgrppl 48 109 0 93 1 0 1 1 0 8 0 ucredpl 104 1607 0 1595 1 0 1 1 0 8 0 zombiepl 144 1220 0 1217 1 0 1 1 0 8 0 processpl 1152 1259 0 1217 4 0 4 4 0 8 0 procpl 664 2598 0 2548 6 0 6 6 0 8 0 sosppl 176 12 0 12 1 0 1 1 0 8 1 sockpl 552 2158 0 2124 12 1 11 12 0 8 8 mcl64k 65536 70 0 68 1 0 1 1 0 8 0 mcl8k 8192 11 0 10 1 0 1 1 0 8 0 mcl4k 4096 3520 0 3468 15 0 15 15 0 8 8 mcl2k 2048 1625 0 1616 3 0 3 3 0 8 1 mtagpl 96 61 0 17 2 0 2 2 0 8 0 mbufpl 256 13738 0 13551 18 0 18 18 0 8 4 bufpl 280 6978 0 757 445 0 445 445 0 8 0 anonpl 24 178738 0 175559 58 0 58 58 0 187 26 amapchunkpl 152 34630 0 34178 33 0 33 33 0 158 13 amappl16 200 3004 0 2968 21 9 12 15 0 8 7 amappl15 192 6 0 6 1 0 1 1 0 8 1 amappl14 184 1 0 1 1 0 1 1 0 8 1 amappl13 176 403 0 402 1 0 1 1 0 8 0 amappl12 168 1595 0 1556 2 0 2 2 0 8 0 amappl11 160 66 0 66 1 0 1 1 0 8 1 amappl10 152 42 0 32 1 0 1 1 0 8 0 amappl9 144 257 0 256 1 0 1 1 0 8 0 amappl8 136 22 0 20 1 0 1 1 0 8 0 amappl7 128 77 0 76 1 0 1 1 0 8 0 amappl6 120 263 0 251 1 0 1 1 0 8 0 amappl5 112 99 0 92 1 0 1 1 0 8 0 amappl4 104 392 0 369 1 0 1 1 0 8 0 amappl3 96 5913 0 5829 3 0 3 3 0 8 0 amappl2 88 1383 0 1312 2 0 2 2 0 8 0 amappl1 80 13308 0 12769 15 0 15 15 0 8 2 amappl 88 9460 0 9308 5 0 5 5 0 92 0 uvmvnodes 80 127 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 128 254 0 254 1 0 1 1 0 8 1 dma64 64 6 0 6 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 67 0 7 2 0 2 2 0 8 0 uaddrrnd 24 1241 0 1212 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1241 0 1212 1 0 1 1 0 8 0 vmmpekpl 168 11456 0 11426 2 0 2 2 0 8 0 vmmpepl 168 83851 0 82060 93 0 93 93 0 357 10 vmsppl 368 1240 0 1212 4 0 4 4 0 8 1 rwobjpl 40 23441 0 22419 13 0 13 13 0 8 0 pdppl 4096 2496 0 2430 101 32 69 80 0 8 3 pvpl 32 534693 0 525982 142 0 142 142 0 265 53 pmappl 216 1244 0 1214 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 391 0 32 11 0 11 11 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