kernel: double fault trap, code=0 Stopped at restore_saved+0x35: xorq 0x30(%rsp),%r11 ddb{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic the kernel did not panic ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> show registers rdi 0xffff80002a0fb550 rsi 0xffff80002a1bbaa0 rbp 0 rbx 0 rdx 0 rcx 0 rax 0x7 r8 0 r9 0 r10 0x43d9299786aef354 r11 0xac1f8339b578e66e r12 0xffff80002a1bbaa0 r13 0xffff80002bc68000 r14 0 r15 0xffff80002a0fb550 rip 0xffffffff8113a1e5 restore_saved+0x35 cs 0x8 rflags 0x10046 __ALIGN_SIZE+0xf046 rsp 0 ss 0x10 restore_saved+0x35: xorq 0x30(%rsp),%r11 ddb{0}> show proc PROC (syz-executor.0) tid=378836 pid=19553 tcnt=2 stat=onproc flags process=1000 proc=4080080 runpri=32, usrpri=72, slppri=32, nice=20 wchan=0x0, wmesg=, ps_single=0xffff80002a24a7e8 forw=0xffffffffffffffff, list=0xffff80002a1bb550,0xffff80002a1bc000 process=0xffff80002b28f0f8 user=0xffff80002bc68000, vmspace=0xfffffd8075a811f0 estcpu=22, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 53026 398576 35156 0 2 0 syz-executor.3 53026 274786 35156 0 2 0x4000000 syz-executor.3 53026 174778 35156 0 2 0x4000000 syz-executor.3 53026 130986 35156 0 2 0x4000000 syz-executor.3 51551 259859 75361 0 2 0 syz-executor.6 51551 211650 75361 0 3 0x4000080 fsleep syz-executor.6 51551 301505 75361 0 3 0x4000080 fsleep syz-executor.6 26317 466783 50129 0 2 0 syz-executor.2 26317 477866 50129 0 3 0x4000080 ttyout syz-executor.2 26317 77717 50129 0 3 0x4000080 ttyout syz-executor.2 81952 143397 96182 0 2 0 syz-executor.1 81952 28045 96182 0 3 0x4000080 fsleep syz-executor.1 81952 232377 96182 0 3 0x4000080 fsleep syz-executor.1 65937 436703 2257 0 2 0 syz-executor.7 65937 58288 2257 0 3 0x4000080 pipewr syz-executor.7 65937 351352 2257 0 3 0x4000080 fsleep syz-executor.7 65937 104887 2257 0 3 0x4000080 fsleep syz-executor.7 19553 24609 73238 0 3 0x3000 suspend syz-executor.0 *19553 378836 73238 0 7 0x4081080 syz-executor.0 96182 224799 29138 0 3 0x82 nanoslp syz-executor.1 75361 5578 29138 0 3 0x82 nanoslp syz-executor.6 35156 50350 29138 0 2 0x2 syz-executor.3 41417 174062 0 0 3 0x14200 acct acct 41505 43254 29138 0 2 0x2 syz-executor.4 2257 145545 29138 0 3 0x82 nanoslp syz-executor.7 50129 100534 29138 0 3 0x82 nanoslp syz-executor.2 54957 174554 29138 0 2 0x2 syz-executor.5 73238 351063 29138 0 3 0x82 nanoslp syz-executor.0 20736 153124 1 0 3 0x18100083 ttyin getty 31304 438557 0 0 3 0x14280 nfsidl nfsio 24591 239157 0 0 3 0x14280 nfsidl nfsio 94555 442271 0 0 3 0x14280 nfsidl nfsio 71199 349351 0 0 3 0x14280 nfsidl nfsio 66478 140836 0 0 3 0x14280 nfsidl nfsio 30382 298573 0 0 3 0x14280 nfsidl nfsio 79193 238590 0 0 3 0x14280 nfsidl nfsio 35777 506686 0 0 3 0x14280 nfsidl nfsio 1789 101850 0 0 3 0x14280 nfsidl nfsio 46331 402229 0 0 3 0x14280 nfsidl nfsio 47910 220008 0 0 3 0x14280 nfsidl nfsio 13858 64699 0 0 3 0x14280 nfsidl nfsio 44896 237867 0 0 3 0x14280 nfsidl nfsio 27716 189883 0 0 3 0x14280 nfsidl nfsio 91970 208199 0 0 3 0x14280 nfsidl nfsio 26648 275797 0 0 3 0x14280 nfsidl nfsio 39850 213138 0 0 3 0x14280 nfsidl nfsio 21094 445512 0 0 3 0x14280 nfsidl nfsio 54448 234279 0 0 3 0x14280 nfsidl nfsio 29426 445031 0 0 3 0x14280 nfsidl nfsio 14358 291636 0 0 3 0x14200 bored sosplice 29138 395546 53352 0 2 0x1a000002 syz-fuzzer 29138 51350 53352 0 2 0x1e000002 syz-fuzzer 29138 157036 53352 0 2 0x1e000002 syz-fuzzer 29138 493078 53352 0 3 0x1e000082 thrsleep syz-fuzzer 29138 132585 53352 0 3 0x1e000082 wait syz-fuzzer 29138 421782 53352 0 3 0x1e000082 wait syz-fuzzer 29138 23730 53352 0 3 0x1e000082 wait syz-fuzzer 29138 412986 53352 0 3 0x1e000082 thrsleep syz-fuzzer 29138 20832 53352 0 3 0x1e000082 wait syz-fuzzer 29138 305710 53352 0 3 0x1e000082 thrsleep syz-fuzzer 29138 515573 53352 0 3 0x1e000082 thrsleep syz-fuzzer 29138 480960 53352 0 3 0x1e000082 thrsleep syz-fuzzer 29138 62746 53352 0 3 0x1e000082 wait syz-fuzzer 29138 523024 53352 0 3 0x1e000082 wait syz-fuzzer 29138 302384 53352 0 3 0x1e000082 thrsleep syz-fuzzer 29138 293969 53352 0 3 0x1e000082 wait syz-fuzzer 29138 431729 53352 0 3 0x1e000082 wait syz-fuzzer 53352 364215 23479 0 3 0x810008a sigsusp ksh 23479 190035 5380 0 2 0x18000012 sshd 5380 188729 1 0 3 0x18000088 kqread sshd 54051 144968 56104 74 3 0x19100092 bpf pflogd 56104 455064 1 0 3 0x18000080 netio pflogd 49940 499991 49029 73 3 0x19100090 kqread syslogd 49029 3869 1 0 3 0x18100082 netio syslogd 18840 71558 1 0 3 0x18100080 kqread resolvd 29359 208078 13737 77 3 0x18100092 kqread dhcpleased 72216 109468 13737 77 3 0x18100092 kqread dhcpleased 13737 284255 1 0 3 0x18000080 kqread dhcpleased 63294 283045 0 0 3 0x14200 bored smr 31013 513196 0 0 2 0x14200 zerothread 93140 76367 0 0 3 0x14200 aiodoned aiodoned 96104 51741 0 0 3 0x14200 syncer update 58432 354826 0 0 3 0x14200 cleaner cleaner 1242 252224 0 0 3 0x14200 reaper reaper 29068 267518 0 0 3 0x14200 pgdaemon pagedaemon 27799 76253 0 0 3 0x14200 bored viomb 87186 451887 0 0 3 0x40014200 acpi0 acpi0 47782 345944 0 0 7 0x40014200 idle1 41359 249844 0 0 3 0x14200 bored softnet3 88421 20214 0 0 3 0x14200 bored softnet2 80162 224625 0 0 3 0x14200 bored softnet1 74118 93851 0 0 3 0x14200 bored softnet0 48826 507164 0 0 3 0x14200 bored systqmp 49639 285290 0 0 3 0x14200 bored systq 24358 499722 0 0 3 0x14200 tmoslp softclockmp 11172 447173 0 0 3 0x40014200 tmoslp softclock 85480 76104 0 0 3 0x40014200 idle0 1 303876 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive sched_lock &sched_lock r = 0 (0xffffffff82dd0dd8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 sleep_finish+0x142 sys/kern/kern_synch.c:398 #2 msleep+0xeb sys/kern/kern_synch.c:249 #3 taskq_next_work+0x6e sys/kern/kern_task.c:403 #4 taskq_thread+0x135 sys/kern/kern_task.c:443 #5 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10238 6532K 7582K 166960K 42222 0 pcb 15 30K 34K 166960K 8062 0 rtable 227 8K 8K 166960K 14804 0 pf 41 11K 11K 166960K 1632 0 ifaddr 53 24K 27K 166960K 1596 0 ifgroup 72 3K 3K 166960K 2664 0 sysctl 4 1K 3K 166960K 32 0 counters 72 37K 37K 166960K 1612 0 ioctlops 0 0K 4K 166960K 6216 0 iov 0 0K 32K 166960K 10447 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1753 110K 110K 166960K 25247 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 928 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 10087 0 dirhash 12 2K 3K 166960K 585 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 81K 166960K 88143 0 sigio 0 0K 0K 166960K 2388 0 proc 94 93K 117K 166960K 10411 0 subproc 104 6K 10K 166960K 3204 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 6112 0 in_multi 91 6K 7K 166960K 3592 0 ether_multi 1 0K 0K 166960K 86 0 mrt 4 0K 0K 166960K 76 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 235 1049K 1049K 166960K 235 0 exec 0 0K 1K 166960K 12795 0 pfkey data 0 0K 4K 166960K 323 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 839 1749K 1765K 166960K 839970 0 UVM aobj 129 6K 7K 166960K 159 0 pinsyscall 26 52K 108K 166960K 9093 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 3214 0 NDP 16 0K 2K 166960K 1278 0 temp 76 6812K 6944K 166960K 572683 0 kqueue 12 18K 29K 166960K 7372 0 SYN cache 2 8K 20K 166960K 4 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 24 0 0 1 0 1 1 0 8 0 rtpcb 120 5908 0 5905 77 76 1 5 0 8 0 rtentry 112 4795 0 4694 5 1 4 4 0 8 0 unpcb 144 74910 0 74893 600 598 2 11 0 8 1 syncache 336 636 0 636 111 111 0 1 0 8 0 sackhl 24 9 40 9 4 4 0 1 0 8 0 tcpqe 32 652 0 652 84 84 0 1 0 8 0 tcpcb 808 23662 0 23646 500 495 5 23 0 8 2 arp 120 1055 0 1037 1 0 1 1 0 8 0 ipq 40 5 0 5 2 2 0 1 0 8 0 ipqe 40 15 0 15 2 2 0 1 0 8 0 inpcb 392 67475 0 67456 825 820 5 29 0 8 1 nd6 136 777 0 755 3 2 1 2 0 8 0 pkpcb 40 384 0 384 59 59 0 1 0 8 0 kcovpl 48 237 0 229 1 0 1 1 0 8 0 ppxss 1168 272 0 272 67 67 0 1 0 8 0 pffrag 232 1129 0 1126 6 5 1 1 0 482 0 pffrnode 88 1092 0 1089 6 5 1 1 0 8 0 pffrent 40 2679 0 2676 5 4 1 1 0 8 0 pfosfp 40 1428 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1428 0 714 21 0 21 21 0 8 0 pfstitem 24 2472 0 2440 1 0 1 1 0 8 0 pfstkey 128 2479 0 2447 9 7 2 3 0 8 0 pfstate 376 2479 0 2447 56 51 5 13 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 16 0 15 8 7 1 3 0 8 0 art_heap4 256 13964 0 13527 116 88 28 34 0 8 0 art_table 32 13980 0 13542 7 2 5 5 0 8 0 art_node 16 4483 0 4393 1 0 1 1 0 8 0 sysvmsgpl 40 12 0 2 1 0 1 1 0 8 0 semupl 112 3 0 3 1 1 0 1 0 8 0 semapl 112 10082 0 10072 1 0 1 1 0 8 0 shmpl 112 156 0 30 4 0 4 4 0 8 0 dirhash 1024 399 0 382 3 0 3 3 0 8 0 dino2pl 256 114266 0 112433 115 0 115 115 0 8 0 ffsino 272 114266 0 112433 123 0 123 123 0 8 0 nchpl 144 231388 0 229648 67 0 67 67 0 8 0 uvmvnodes 80 12390 0 0 253 0 253 253 0 8 0 vnodes 216 12390 0 0 689 0 689 689 0 8 0 namei 1024 777878 0 777878 23 22 1 2 0 8 1 percpumem 16 820 0 770 1 0 1 1 0 8 0 vcpupl 2048 516 0 4 65 0 65 65 0 8 0 vmpool 696 768 0 256 55 8 47 47 0 8 0 kstatmem 264 1572 0 1540 16 13 3 3 0 8 0 scxspl 216 725939 0 725939 160 159 1 8 1 8 1 plimitpl 152 10889 0 10873 1 0 1 1 0 8 0 sigapl 424 88074 0 88005 12 3 9 9 0 8 0 futexpl 64 700984 0 700977 13 12 1 1 0 8 0 knotepl 120 3134 0 0 25 8 17 19 0 8 0 kqueuepl 216 17176 0 17168 245 244 1 9 0 8 0 pipepl 320 12541 0 12512 328 325 3 13 0 8 0 fdescpl 496 87997 0 87968 5 0 5 5 0 8 0 filepl 152 518017 0 517769 586 572 14 23 0 8 2 lockfpl 104 21766 0 21764 31 30 1 2 0 8 0 lockfspl 48 6849 0 6847 1 0 1 1 0 8 0 sessionpl 144 261 0 244 1 0 1 1 0 8 0 pgrppl 48 1743 0 1726 1 0 1 1 0 8 0 ucredpl 104 73458 0 73436 1 0 1 1 0 8 0 zombiepl 144 88005 0 88005 4 3 1 1 0 8 1 processpl 1136 88074 0 88005 6 0 6 6 0 8 0 procpl 680 234764 0 234666 37 28 9 10 0 8 0 srpgc 96 384 0 384 93 93 0 1 0 8 0 sosppl 168 1098 0 1092 25 24 1 1 0 8 0 sockpl 584 149027 0 148986 929 920 9 25 0 8 3 mcl64k 65536 65 0 0 6 3 3 3 0 8 0 mcl16k 16384 33 0 0 3 0 3 3 0 8 0 mcl12k 12288 81 0 0 2 0 2 2 0 8 0 mcl9k 9216 29 0 0 2 0 2 2 0 8 0 mcl8k 8192 85 0 0 6 3 3 4 0 8 0 mcl4k 4096 108 0 0 6 3 3 6 0 8 0 mcl2k2 2112 32 0 0 3 1 2 2 0 8 0 mcl2k 2048 957 0 0 39 27 12 39 0 8 0 mtagpl 96 693 0 0 13 3 10 13 0 8 0 mbufpl 256 7200 0 0 411 1 410 411 0 8 0 bufpl 280 144956 0 132565 886 0 886 886 0 8 0 anonpl 24 8206071 0 8192302 652 527 125 180 0 186 0 amapchunkpl 152 2678805 0 2677871 540 500 40 71 0 158 0 amappl16 200 156983 0 156373 534 495 39 47 0 8 0 amappl15 192 265 0 263 1 0 1 1 0 8 0 amappl14 184 1007 0 981 3 1 2 2 0 8 0 amappl13 176 34 0 34 7 6 1 1 0 8 1 amappl12 168 92160 0 92119 23 21 2 3 0 8 0 amappl11 160 62 0 48 1 0 1 1 0 8 0 amappl10 152 450 0 430 1 0 1 1 0 8 0 amappl9 144 802 0 802 124 124 0 1 0 8 0 amappl8 136 3899 0 3582 13 1 12 12 0 8 0 amappl7 128 435 0 418 1 0 1 1 0 8 0 amappl6 120 4016 0 3974 3 1 2 2 0 8 0 amappl5 112 2643 0 2627 1 0 1 1 0 8 0 amappl4 104 3690 0 3619 3 0 3 3 0 8 0 amappl3 96 518492 0 518402 3 0 3 3 0 8 0 amappl2 88 92788 0 92691 5 2 3 4 0 8 0 amappl1 80 332150 0 331606 23 10 13 23 0 8 0 amappl 88 835791 0 835410 11 1 10 10 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 72 158 0 30 3 0 3 3 0 8 0 uaddrrnd 24 88765 0 88224 4 0 4 4 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 88765 0 88224 4 0 4 4 0 8 0 vmmpekpl 168 552151 0 552009 7 0 7 7 0 8 0 vmmpepl 168 5186835 0 5183396 1035 843 192 243 0 357 0 vmsppl 448 88764 0 88224 71 10 61 61 0 8 0 rwobjpl 56 1183237 0 1168543 287 79 208 208 0 8 0 pdppl 4096 177537 0 176960 2569 1989 580 585 0 8 3 pvpl 32 45170 0 0 365 0 365 365 0 265 0 pmappl 248 88764 0 88224 37 3 34 35 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 5211 0 3776 43 1 42 42 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace end trace frame: 0x0, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp ddb{1}> trace x86_ipi_db(ffff800029cebff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 acpicpu_idle() at acpicpu_idle+0x2f1 sys/dev/acpi/acpicpu.c:1206 sched_idle(ffff800029cebff0) at sched_idle+0x41d sys/kern/kern_sched.c:183 end trace frame: 0x0, count: -5