*cpu0: uvm_fault(0xfffffd8071b8e528, 0x2b0, 0, 1) -> e ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x75b528414b00, count: -1 ddb{1}> show registers rdi 0 rsi 0 rbp 0xffff800033917c10 rbx 0 rdx 0 rcx 0xffff80002d578030 rax 0x2a r8 0xffff800033917b40 r9 0x1 r10 0x3355f7275dc8885d r11 0xed5ac5f903d1bd1a r12 0 r13 0 r14 0 r15 0 rip 0xffffffff815f44c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff800033917b90 ss 0x10 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{1}> show proc PROC (syz-executor) tid=37552 pid=23271 tcnt=2 stat=onproc flags process=8000000 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80002a03f458,0xffff80002a0f42e0 process=0xffff8000372531e0 user=0xffff800033912000, vmspace=0xfffffd8071b8e000 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND *23271 37552 47745 0 7 0x8000000 syz-executor 23271 255453 47745 0 3 0xc000080 fsleep syz-executor 62979 381365 82948 0 2 0x8000000 syz-executor 62979 297700 82948 0 3 0xc000000 vm_terminate syz-executor 62979 228540 82948 0 7 0xc000000 syz-executor 53979 93101 43947 0 2 0x8000000 syz-executor 53979 303944 43947 0 3 0xc000080 fsleep syz-executor 179 16627 77771 0 3 0x8000090 nanoslp syz-executor 179 512613 77771 0 3 0xc000090 ttyretype syz-executor 179 138739 77771 0 3 0xc000090 fsleep syz-executor 13904 414952 18227 0 2 0x8000000 syz-executor 13904 249055 18227 0 3 0xc000080 sbwait syz-executor 13904 179730 18227 0 3 0xc000080 bell syz-executor 3341 62904 53743 0 2 0x8000010 syz-executor 3341 365204 53743 0 3 0xc000090 sbwait syz-executor 3341 364164 53743 0 3 0xc000090 bpf syz-executor 3341 389276 53743 0 3 0xc000010 smrbar syz-executor 507 56919 25491 0 3 0x8000090 nanoslp syz-executor 507 30147 25491 0 3 0xc000090 sbwait syz-executor 507 151100 25491 0 3 0xc000090 kqsel syz-executor 507 276090 25491 0 3 0xc000090 fsleep syz-executor 17079 198161 89244 0 3 0x8000080 nanoslp syz-executor 17079 441015 89244 0 3 0xc000080 piperd syz-executor 17079 105680 89244 0 3 0xc000080 fsleep syz-executor 17079 499404 89244 0 3 0xc000080 fsleep syz-executor 47745 54243 23575 0 3 0x8000082 nanoslp syz-executor 25491 62364 23575 0 3 0x8000082 nanoslp syz-executor 18227 485438 23575 0 3 0x8000082 nanoslp syz-executor 89244 15012 23575 0 3 0x8000082 nanoslp syz-executor 53743 281402 23575 0 2 0x8000002 syz-executor 43947 243000 23575 0 3 0x8000082 nanoslp syz-executor 82948 76851 23575 0 3 0x8000082 nanoslp syz-executor 77771 378084 23575 0 3 0x8000082 nanoslp syz-executor 89134 349849 0 0 3 0x14200 acct acct 36307 410682 0 0 3 0x14280 nfsidl nfsio 90222 252070 0 0 3 0x14280 nfsidl nfsio 22532 208638 0 0 3 0x14280 nfsidl nfsio 88164 379754 0 0 3 0x14280 nfsidl nfsio 72962 491239 0 0 3 0x14280 nfsidl nfsio 96992 423813 0 0 3 0x14280 nfsidl nfsio 50508 124896 0 0 3 0x14280 nfsidl nfsio 92172 278422 0 0 3 0x14280 nfsidl nfsio 26574 64918 0 0 3 0x14280 nfsidl nfsio 72284 436890 0 0 3 0x14280 nfsidl nfsio 83603 180607 0 0 3 0x14280 nfsidl nfsio 46660 393702 0 0 3 0x14280 nfsidl nfsio 41414 203239 0 0 3 0x14280 nfsidl nfsio 44679 217567 0 0 3 0x14280 nfsidl nfsio 162 104136 0 0 3 0x14280 nfsidl nfsio 55634 512402 0 0 3 0x14280 nfsidl nfsio 11325 123730 0 0 3 0x14280 nfsidl nfsio 39344 150332 0 0 3 0x14280 nfsidl nfsio 60859 22912 0 0 3 0x14280 nfsidl nfsio 64569 85792 0 0 3 0x14280 nfsidl nfsio 54719 386879 0 0 3 0x14200 bored sosplice 23575 424449 65087 0 3 0x8000082 kqread syz-executor 65087 267412 90589 0 3 0x810008a sigsusp ksh 90589 214210 99805 0 3 0x18000098 kqread sshd-session 99805 24028 34692 0 3 0x18000092 kqread sshd-session 40608 396920 1 0 3 0x18100083 ttyin getty 34692 171303 1 0 3 0x18000088 kqread sshd 73160 283611 31717 74 3 0x19100092 bpf pflogd 31717 182975 1 0 3 0x18000080 sbwait pflogd 53514 156645 27420 73 3 0x19100090 kqread syslogd 27420 502598 1 0 3 0x18100082 sbwait syslogd 74119 325464 1 0 3 0x18100080 kqread resolvd 82595 482661 45719 77 3 0x18100092 kqread dhcpleased 91064 295100 45719 77 3 0x18100092 kqread dhcpleased 45719 131701 1 0 3 0x18000080 kqread dhcpleased 89174 144955 0 0 3 0x14200 bored smr 82246 54237 0 0 2 0x14200 zerothread 10057 484180 0 0 3 0x14200 aiodoned aiodoned 75263 209470 0 0 3 0x14200 syncer update 84735 449214 0 0 3 0x14200 cleaner cleaner 82075 479742 0 0 3 0x14200 reaper reaper 78406 510596 0 0 3 0x14200 pgdaemon pagedaemon 65049 283776 0 0 3 0x14200 bored viomb 2286 375391 0 0 3 0x40014200 acpi0 acpi0 23686 27487 0 0 3 0x40014200 idle1 8964 175781 0 0 3 0x14200 bored softnet3 67855 69884 0 0 3 0x14200 bored softnet2 71767 491945 0 0 3 0x14200 bored softnet1 42241 62441 0 0 3 0x14200 bored softnet0 68389 453851 0 0 3 0x14200 bored systqmp 88731 431040 0 0 3 0x14200 bored systq 63609 57095 0 0 3 0x14200 tmoslp softclockmp 44797 328890 0 0 3 0x40014200 tmoslp softclock 53114 65974 0 0 3 0x40014200 idle0 1 214572 0 0 3 0x8080082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 1: exclusive mutex &sched_lock r = 0 (0xffffffff835c22f8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 sleep_finish+0x1a9 sys/kern/kern_synch.c:400 #4 refcnt_finalize+0xd6 sys/kern/kern_synch.c:848 #5 vm_terminate+0x16d #6 vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248 #7 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #8 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #9 sys_ioctl+0x67c #10 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 Process 62979 (syz-executor) thread 0xffff80002a03f458 (228540) exclusive rwlock vm_list r = 0 (0xffff800000a18cc0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 vm_terminate+0x84 sys/dev/vmm/vmm.c:674 #3 vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248 #4 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #5 vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 #6 sys_ioctl+0x67c #7 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 3341 (syz-executor) thread 0xffff80002a0f5200 (365204) exclusive rwlock sbufrcv r = 0 (0xffff8000011e55a8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 soreceive+0x295 sys/kern/uipc_socket.c:947 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1082 #5 sys_recvmsg+0x1bf sys/kern/uipc_syscalls.c:882 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 3341 (syz-executor) thread 0xffff8000ffff0028 (389276) exclusive rwlock clonelk r = 0 (0xffffffff8347f370) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 if_clone_destroy+0x67 #2 ifioctl+0x5c5 #3 sys_ioctl+0x67c #4 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10211 10186K 10609K 166960K 13537 0 pcb 18 20K 22K 166960K 460 0 rtable 237 11K 12K 166960K 3034 0 pf 39 18K 23K 166960K 358 0 ifaddr 44 8K 8K 166960K 393 0 ifgroup 59 2K 2K 166960K 435 0 sysctl 3 0K 1K 166960K 8 0 counters 66 36K 37K 166960K 262 0 ioctlops 0 0K 4K 166960K 1734 0 iov 1 12K 22K 166960K 135 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1452 91K 92K 166960K 3878 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 20 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 172 0 dirhash 15 2K 3K 166960K 51 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 18 65K 97K 166960K 2538 0 sigio 0 0K 0K 166960K 36 0 proc 71 91K 128K 166960K 2875 0 subproc 104 6K 6K 166960K 1145 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 422 0 in_multi 99 7K 7K 166960K 1022 0 ether_multi 1 0K 0K 166960K 15 0 mrt 1 0K 0K 166960K 7 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 121 546K 546K 166960K 121 0 exec 0 0K 1K 166960K 1690 0 pfkey data 0 0K 0K 166960K 4 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 265 77K 93K 166960K 20658 0 UVM aobj 39 6K 6K 166960K 43 0 pinsyscall 43 86K 107K 166960K 5687 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 1K 166960K 74 0 NDP 15 0K 2K 166960K 289 0 temp 76 6824K 6896K 166960K 67142 0 kqueue 14 22K 32K 166960K 230 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 120 392 0 389 3 2 1 3 0 8 0 rtentry 112 1088 0 987 4 1 3 4 0 8 0 unpcb 144 1559 0 1527 23 21 2 6 0 8 0 syncache 336 6 0 6 3 3 0 1 0 8 0 tcpcb 808 823 0 814 27 25 2 14 0 8 0 arp 120 181 0 163 1 0 1 1 0 8 0 inpcb 336 2767 0 2751 45 40 5 13 0 8 3 nd6 136 277 0 251 1 0 1 1 0 8 0 pkpcb 40 43 0 43 5 5 0 1 0 8 0 kcovpl 48 88 0 80 1 0 1 1 0 8 0 ppxss 1168 11 0 11 7 7 0 1 0 8 0 pfstscr 40 3 0 3 2 2 0 1 0 8 0 pffrag 232 15 0 9 1 0 1 1 0 482 0 pffrnode 88 14 0 9 1 0 1 1 0 8 0 pffrent 40 60 0 54 1 0 1 1 0 8 0 pfosfp 40 1431 0 1005 5 0 5 5 0 8 0 pfosfpen 112 1431 0 714 21 0 21 21 0 8 0 pfrktable 1344 13 0 8 1 0 1 1 0 8 0 pfanchor 1288 9 0 0 1 0 1 1 0 8 0 pftag 88 9 0 5 1 0 1 1 0 8 0 pfqueue 264 1 0 0 1 0 1 1 0 8 0 pfstitem 24 221 0 161 1 0 1 1 0 8 0 pfstkey 128 225 0 165 3 0 3 3 0 8 0 pfstate 376 221 0 162 8 1 7 7 0 8 0 pfrule 1344 39 0 27 4 2 2 2 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 4099 0 3650 36 7 29 29 0 8 0 art_table 32 4100 0 3650 4 0 4 4 0 8 0 art_node 16 1017 0 926 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 9 2 1 1 1 0 8 0 semapl 112 169 0 159 1 0 1 1 0 8 0 shmpl 112 40 0 4 2 0 2 2 0 8 0 dirhash 1024 44 0 25 3 0 3 3 0 8 0 dino2pl 256 4139 0 2480 105 1 104 104 0 8 0 ffsino 272 4139 0 2480 111 0 111 111 0 8 0 nchpl 144 6236 0 5607 66 0 66 66 0 8 38 uvmvnodes 80 6216 0 0 127 0 127 127 0 8 0 vnodes 216 6216 0 0 346 0 346 346 0 8 0 namei 1024 31245 0 31245 6 5 1 2 0 8 1 percpumem 16 145 0 98 1 0 1 1 0 8 0 vcpupl 3904 7 0 0 1 0 1 1 0 8 0 vmpool 696 11 0 4 1 0 1 1 0 8 0 pfiaddrpl 120 4 0 2 1 0 1 1 0 8 0 kstatmem 264 222 0 196 4 1 3 3 0 8 0 scxspl 216 57075 0 57075 16 15 1 8 1 8 1 plimitpl 152 523 0 505 1 0 1 1 0 8 0 sigapl 424 2699 0 2627 10 1 9 9 0 8 0 futexpl 64 22729 0 22723 6 5 1 1 0 8 0 knotepl 120 647 0 0 17 0 17 17 0 8 0 kqueuepl 216 572 0 561 3 2 1 3 0 8 0 pipepl 320 552 0 524 9 6 3 6 0 8 0 fdescpl 496 2658 0 2626 9 4 5 6 0 8 0 filepl 152 17309 0 17024 50 35 15 21 0 8 2 lockfpl 104 905 0 901 3 1 2 2 0 8 1 lockfspl 48 353 0 350 1 0 1 1 0 8 0 sessionpl 144 102 0 93 1 0 1 1 0 8 0 pgrppl 48 282 0 265 1 0 1 1 0 8 0 ucredpl 104 2719 0 2703 1 0 1 1 0 8 0 zombiepl 144 2627 0 2627 1 0 1 1 0 8 1 processpl 1160 2699 0 2627 7 1 6 6 0 8 0 procpl 648 4895 0 4806 10 2 8 9 0 8 0 srpgc 96 14 0 14 6 5 1 1 0 8 1 sosppl 168 8 0 8 5 5 0 1 0 8 0 sockpl 664 4778 0 4727 65 58 7 21 0 8 2 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 5 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 4 0 0 1 0 1 1 0 8 0 mcl2k2 2112 2 0 0 1 0 1 1 0 8 0 mcl2k 2048 274 0 0 28 1 27 28 0 8 1 mtagpl 96 6 0 0 1 0 1 1 0 8 0 mbufpl 256 827 0 0 45 0 45 45 0 8 0 bufpl 280 13008 0 4940 578 1 577 577 0 8 0 anonpl 24 398558 0 394912 113 62 51 71 0 185 15 amapchunkpl 152 65706 0 65145 51 20 31 33 0 158 9 amappl16 200 7137 0 7110 88 84 4 27 0 8 2 amappl15 192 10 0 9 1 0 1 1 0 8 0 amappl14 184 276 0 264 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 4572 0 4540 4 2 2 3 0 8 0 amappl11 160 82 0 67 1 0 1 1 0 8 0 amappl10 152 11 0 11 1 1 0 1 0 8 0 amappl9 144 153 0 153 1 1 0 1 0 8 0 amappl8 136 70 0 68 1 0 1 1 0 8 0 amappl7 128 264 0 251 1 0 1 1 0 8 0 amappl6 120 961 0 960 1 0 1 1 0 8 0 amappl5 112 457 0 445 1 0 1 1 0 8 0 amappl4 104 577 0 556 1 0 1 1 0 8 0 amappl3 96 12817 0 12684 4 0 4 4 0 8 0 amappl2 88 1739 0 1674 2 0 2 2 0 8 0 amappl1 80 19764 0 19167 20 6 14 15 0 8 1 amappl 88 19621 0 19427 5 0 5 5 0 92 0 dma4096 4096 2 0 2 2 2 0 1 0 8 0 dma1024 1024 1 0 0 1 0 1 1 0 8 0 dma512 512 1 0 1 1 1 0 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 21 0 20 1 0 1 1 0 8 0 aobjpl 72 42 0 4 1 0 1 1 0 8 0 uaddrrnd 24 2670 0 2631 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 2670 0 2631 1 0 1 1 0 8 0 vmmpekpl 168 22883 0 22819 4 0 4 4 0 8 0 vmmpepl 168 167026 0 165049 138 51 87 106 0 357 0 vmsppl 440 2669 0 2631 9 4 5 5 0 8 0 rwobjpl 56 54024 0 46781 112 9 103 103 0 8 0 pdppl 4096 5347 0 5269 206 126 80 87 0 8 2 pvpl 32 29432 0 0 237 1 236 236 0 265 0 pmappl 248 2669 0 2631 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 632 0 219 13 0 13 13 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff8346bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 cnputc(30) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff8308e9ed) at db_printf+0x9b fault(ffffffff830389ee) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002d56e080,2b0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002d56e080) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80002d56e170, count: 0 ddb{0}> trace x86_ipi_db(ffffffff8346bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:113 [inline] __mp_lock(ffffffff8360ac08) at __mp_lock+0x192 sys/kern/kern_lock.c:144 softintr_dispatch(0) at softintr_dispatch+0x5b sys/arch/amd64/amd64/softintr.c:88 Xsoftclock() at Xsoftclock+0x27 cnputc(30) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(30) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff8308e9ed) at db_printf+0x9b fault(ffffffff830389ee) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002d56e080,2b0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002d56e080) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b vm_terminate(ffff80002d56e3d0) at vm_terminate+0xb0 sys/dev/vmm/vmm.c:674 vmmioctl(a00,80045604,ffff80002d56e3d0,81,ffff80002a03f458) at vmmioctl+0x3c5 sys/dev/vmm/vmm.c:248 VOP_IOCTL(fffffd807b9b0290,80045604,ffff80002d56e3d0,81,fffffd807f7d3340,ffff80002a03f458) at VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 vn_ioctl(fffffd806003d7d8,80045604,ffff80002d56e3d0,ffff80002a03f458) at vn_ioctl+0xf6 sys/kern/vfs_vnops.c:525 sys_ioctl(ffff80002a03f458,ffff80002d56e5b0,ffff80002d56e500) at sys_ioctl+0x67c syscall(ffff80002d56e5b0) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002d56e5b0) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x9e9d51649e0, count: -21 ddb{0}> machine ddbcpu 1 Stopped at proc_trampoline+0xc7: movl $0,%gs:0x680 proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x75b528414b00, count: 14 ddb{1}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x75b528414b00, count: -1