*cpu1: uvm_fault(0xfffffd806bed33d8, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x70cd13b1ce80, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a2c8d40 rbx 0 rdx 0 rcx 0xffff8000fffe6a78 rax 0x2a r8 0xffff80002a2c8c70 r9 0x4 r10 0x2376e918d37ec9fe r11 0x5da7e11779ce5abc r12 0 r13 0 r14 0 r15 0 rip 0xffffffff81a0b4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a2c8cc0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=282022 pid=51551 tcnt=1 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=16, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff800037bf7c60,0xffff8000fffe7238 process=0xffff80002ebe84c8 user=0xffff80002a2c3000, vmspace=0xfffffd806bed3b58 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 27307 341716 9012 0 2 0 syz-executor 82192 348472 93312 0 2 0 syz-executor *51551 282022 82250 0 7 0 syz-executor 93488 244206 46765 0 2 0 syz-executor 93488 218999 46765 0 2 0x4000000 syz-executor 93312 352963 91448 0 2 0x2 syz-executor 54720 163808 1 0 3 0x100083 ttyin getty 75555 124956 91448 0 3 0x82 nanoslp syz-executor 16577 130682 0 0 3 0x14200 acct acct 29172 174024 0 0 3 0x14200 bored sosplice 57787 303646 0 0 3 0x14280 nfsidl nfsio 65883 484746 0 0 3 0x14280 nfsidl nfsio 87325 250432 0 0 3 0x14280 nfsidl nfsio 56253 212878 0 0 3 0x14280 nfsidl nfsio 13013 410839 0 0 3 0x14280 nfsidl nfsio 13026 294339 0 0 3 0x14280 nfsidl nfsio 76678 77392 0 0 3 0x14280 nfsidl nfsio 58172 124481 0 0 3 0x14280 nfsidl nfsio 43924 239263 0 0 3 0x14280 nfsidl nfsio 6473 72158 0 0 3 0x14280 nfsidl nfsio 52024 249566 0 0 3 0x14280 nfsidl nfsio 63698 511945 0 0 3 0x14280 nfsidl nfsio 8096 173732 0 0 3 0x14280 nfsidl nfsio 91991 367090 0 0 3 0x14280 nfsidl nfsio 31396 248516 0 0 3 0x14280 nfsidl nfsio 29086 445692 0 0 3 0x14280 nfsidl nfsio 87328 285799 0 0 3 0x14280 nfsidl nfsio 41499 175298 0 0 3 0x14280 nfsidl nfsio 68908 129895 0 0 3 0x14280 nfsidl nfsio 45352 445833 0 0 3 0x14280 nfsidl nfsio 57337 242074 75101 0 3 0x100082 sbwait arp 75101 182810 86861 0 3 0x10008a sigsusp sh 86861 98578 91448 0 3 0x82 wait syz-executor 9012 178069 91448 0 3 0x82 nanoslp syz-executor 82250 170676 91448 0 3 0x82 nanoslp syz-executor 68618 261855 91448 0 3 0x2 biowait syz-executor 46765 384742 91448 0 3 0x82 nanoslp syz-executor 28906 144114 91448 0 3 0x82 nanoslp syz-executor 91448 290683 85037 0 3 0x82 kqread syz-executor 85037 91885 62196 0 3 0x10008a sigsusp ksh 62196 9880 21248 0 3 0x98 kqread sshd-session 21248 260364 29650 0 3 0x92 kqread sshd-session 29650 501300 1 0 3 0x88 kqread sshd 11495 91914 53658 74 3 0x1100092 bpf pflogd 53658 458208 1 0 3 0x80 sbwait pflogd 57520 245259 47697 73 3 0x1100090 kqread syslogd 47697 262321 1 0 3 0x100082 sbwait syslogd 25656 282756 1 0 3 0x100080 kqread resolvd 10735 419314 52361 77 3 0x100092 kqread dhcpleased 89003 166392 52361 77 3 0x100092 kqread dhcpleased 52361 303719 1 0 3 0x80 kqread dhcpleased 5529 384652 0 0 3 0x14200 bored smr 22802 186091 0 0 2 0x14200 zerothread 77240 153111 0 0 3 0x14200 aiodoned aiodoned 78520 329851 0 0 3 0x14200 syncer update 70231 365981 0 0 3 0x14200 cleaner cleaner 69771 403009 0 0 3 0x14200 reaper reaper 10063 116218 0 0 3 0x14200 pgdaemon pagedaemon 9665 61015 0 0 3 0x14200 bored viomb 14063 431385 0 0 3 0x40014200 acpi0 acpi0 27804 355897 0 0 3 0x40014200 idle1 79021 144381 0 0 3 0x14200 bored softnet3 34346 457642 0 0 3 0x14200 bored softnet2 47277 161678 0 0 3 0x14200 bored softnet1 21437 378983 0 0 3 0x14200 bored softnet0 1847 197413 0 0 3 0x14200 bored systqmp 2840 223779 0 0 3 0x14200 bored systq 73693 465483 0 0 3 0x14200 tmoslp softclockmp 18445 406994 0 0 3 0x40014200 tmoslp softclock 34692 159702 0 0 3 0x40014200 idle0 1 384826 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807eb8c610) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2770 #4 uvm_fault_lower+0x703 sys/uvm/uvm_fault.c:1480 #5 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 51551 (syz-executor) thread 0xffff8000fffe6a78 (282022) exclusive rwlock uobjlk r = 0 (0xfffffd806ce218d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvm_fault_lower_lookup+0x53 sys/uvm/uvm_fault.c:1173 #3 uvm_fault_lower+0x86 sys/uvm/uvm_fault.c:1310 #4 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd806bed3c58) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1860 #3 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:730 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:666 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #6 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #7 recall_trap+0x8 exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd807eb8c610) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 mtx_enter_try+0x178 sys/kern/kern_lock.c:-1 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 pmap_enter+0x246 rcr3 machine/cpufunc.h:139 [inline] #3 pmap_enter+0x246 pmap_map_ptes sys/arch/amd64/amd64/pmap.c:437 [inline] #3 pmap_enter+0x246 sys/arch/amd64/amd64/pmap.c:2770 #4 uvm_fault_lower+0x703 sys/uvm/uvm_fault.c:1480 #5 uvm_fault+0x272 sys/uvm/uvm_fault.c:-1 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 68618 (syz-executor) thread 0xffff80002a2b5728 (261855) exclusive rrwlock inode r = 0 (0xfffffd806d4c1788) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vget+0x2bd sys/kern/vfs_subr.c:694 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1201 #8 ufs_lookup+0x19f8 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 #11 namei+0x7aa sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #13 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd807adeff78) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:616 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1866 #8 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 11053K 11389K 166960K 12164 0 pcb 17 14K 16K 166960K 272 0 rtable 211 9K 9K 166960K 479 0 pf 34 17K 18K 166960K 100 0 ifaddr 39 6K 7K 166960K 85 0 ifgroup 55 2K 2K 166960K 128 0 sysctl 4 1K 1K 166960K 4 0 counters 64 36K 37K 166960K 208 0 ioctlops 0 0K 4K 166960K 1603 0 iov 0 0K 16K 166960K 98 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1396 88K 88K 166960K 2018 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 17 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 106 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 114K 166960K 856 0 sigio 0 0K 0K 166960K 12 0 proc 72 91K 128K 166960K 681 0 subproc 72 4K 4K 166960K 90 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 140 0 in_multi 78 5K 6K 166960K 138 0 ether_multi 1 0K 0K 166960K 6 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 247 1102K 1102K 166960K 247 0 exec 0 0K 1K 166960K 580 0 fusefs mount 1 32K 32K 166960K 1 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 217 161K 174K 166960K 9517 0 UVM aobj 21 3K 3K 166960K 24 0 pinsyscall 44 88K 108K 166960K 2027 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 38 0 NDP 12 0K 1K 166960K 55 0 temp 76 8692K 8764K 166960K 32045 0 kqueue 13 20K 28K 166960K 160 0 SYN cache 2 16K 16K 166960K 2 0 ddb{0}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 26 0 0 1 0 1 1 0 8 0 rtpcb 120 91 0 87 1 0 1 1 0 8 0 rtentry 176 146 0 56 5 0 5 5 0 8 0 unpcb 144 1116 0 1095 17 9 8 10 0 8 7 syncache 336 7 0 7 2 2 0 1 0 8 0 tcpqe 32 3 0 3 1 1 0 1 0 8 0 tcpcb 808 269 0 262 6 3 3 4 0 8 2 arp 128 25 0 6 1 0 1 1 0 8 0 inpcb 384 860 0 849 11 3 8 8 0 8 6 nd6 144 31 0 11 1 0 1 1 0 8 0 pkpcb 40 8 0 8 2 1 1 1 0 8 1 kcovpl 48 10 0 2 1 0 1 1 0 8 0 mppekey 1024 1 0 1 1 1 0 1 0 8 0 ppxss 1192 63 0 63 1 0 1 1 0 8 1 pppxif 1504 4 0 4 2 1 1 1 0 8 1 pffrag 232 5 0 0 1 0 1 1 0 482 0 pffrnode 88 5 0 0 1 0 1 1 0 8 0 pffrent 40 9 0 4 1 0 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 54 0 22 1 0 1 1 0 8 0 pfstkey 128 54 0 22 2 0 2 2 0 8 0 pfstate 384 54 0 22 5 0 5 5 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 602 0 231 30 6 24 27 0 8 0 art_table 32 603 0 231 4 0 4 4 0 8 0 art_node 16 143 0 65 1 0 1 1 0 8 0 sysvmsgpl 40 33 0 25 1 0 1 1 0 8 0 semupl 112 2 0 2 1 1 0 1 0 8 0 semapl 112 102 0 92 1 0 1 1 0 8 0 shmpl 112 21 0 3 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 2960 0 1458 95 0 95 95 0 8 0 ffsino 288 2960 0 1458 109 0 109 109 0 8 0 nchpl 144 4088 0 2400 64 0 64 64 0 8 0 rtmask 32 5 0 5 1 1 0 1 0 8 0 uvmvnodes 80 3369 0 0 69 0 69 69 0 8 0 vnodes 216 3369 0 0 188 0 188 188 0 8 0 namei 1024 14384 0 14384 5 3 2 2 0 8 2 percpumem 16 119 0 72 1 0 1 1 0 8 0 kstatmem 264 74 0 50 3 1 2 3 0 8 0 scsiplug 72 4 0 4 3 2 1 1 0 8 1 scxspl 216 12501 0 12500 10 5 5 8 1 8 4 plimitpl 152 288 0 271 1 0 1 1 0 8 0 sigapl 424 1180 0 1108 9 0 9 9 0 8 0 futexpl 64 11268 0 11268 1 0 1 1 0 8 1 knotepl 120 661 0 0 21 0 21 21 0 8 0 kqueuepl 224 315 0 306 6 4 2 5 0 8 1 pipepl 336 230 0 203 6 0 6 6 0 8 3 fdescpl 520 1140 0 1108 3 0 3 3 0 8 0 filepl 160 7538 0 7321 29 11 18 21 0 8 6 lockfpl 104 222 0 220 1 0 1 1 0 8 0 lockfspl 48 90 0 88 1 0 1 1 0 8 0 sessionpl 144 30 0 21 1 0 1 1 0 8 0 pgrppl 48 50 0 33 1 0 1 1 0 8 0 ucredpl 104 1053 0 1040 1 0 1 1 0 8 0 zombiepl 144 1304 0 1302 1 0 1 1 0 8 0 processpl 1192 1180 0 1108 6 0 6 6 0 8 0 procpl 656 2413 0 2340 8 0 8 8 0 8 0 srpgc 96 8 0 8 3 2 1 1 0 8 1 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 728 2085 0 2050 50 38 12 29 0 8 8 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 109 0 0 14 0 14 14 0 8 0 mcl2k 2048 33 0 0 4 0 4 4 0 8 0 mtagpl 96 17 0 0 1 0 1 1 0 8 0 mbufpl 256 282 0 0 17 0 17 17 0 8 0 bufpl 280 3726 0 135 257 0 257 257 0 8 0 anonpl 32 7949 0 0 64 0 64 64 0 246 0 amapchunkpl 152 30463 0 30058 29 4 25 26 0 158 3 amappl16 200 3450 0 3420 22 7 15 15 0 8 12 amappl15 192 6 0 5 1 0 1 1 0 8 0 amappl14 184 123 0 110 1 0 1 1 0 8 0 amappl13 176 4 0 3 1 0 1 1 0 8 0 amappl12 168 1827 0 1797 4 1 3 3 0 8 0 amappl11 160 84 0 69 1 0 1 1 0 8 0 amappl10 152 1 0 1 1 1 0 1 0 8 0 amappl9 144 259 0 258 1 0 1 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 116 0 103 1 0 1 1 0 8 0 amappl6 120 204 0 199 1 0 1 1 0 8 0 amappl5 112 152 0 142 1 0 1 1 0 8 0 amappl4 104 346 0 326 1 0 1 1 0 8 0 amappl3 96 6133 0 6043 4 0 4 4 0 8 0 amappl2 88 700 0 635 2 0 2 2 0 8 0 amappl1 80 12029 0 11407 15 0 15 15 0 8 0 amappl 88 8597 0 8457 5 0 5 5 0 92 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 1 0 1 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 255 0 255 2 2 0 1 0 8 0 dma64 64 7 0 7 2 1 1 1 0 8 1 dma32 32 8 0 8 2 2 0 1 0 8 0 dma16 16 19 0 18 1 0 1 1 0 8 0 aobjpl 72 23 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1140 0 1108 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1140 0 1108 1 0 1 1 0 8 0 vmmpekpl 168 10985 0 10943 3 0 3 3 0 8 0 vmmpepl 168 78107 0 76131 106 5 101 101 0 357 1 vmsppl 480 1139 0 1108 5 0 5 5 0 8 0 rwobjpl 72 25740 0 21406 84 0 84 84 0 8 1 pdppl 4096 2288 0 2216 112 38 74 88 0 8 2 pvpl 32 14248 0 0 116 1 115 115 0 265 0 pmappl 256 1139 0 1108 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 414 0 55 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x70cd13b1ce80, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_write_1(3f8,0,2d) at x86_bus_space_io_write_1+0x40 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,2d) at comcnputc+0x1ab bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,2d) at comcnputc+0x1ab sys/dev/ic/com.c:1263 cnputc(2d) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff83409566) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833acb84) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c446290,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c446290) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800010fe1000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 end trace frame: 0xffff80003c4463c0, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299edff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:394 x86_ipi_handler() at x86_ipi_handler+0xd9 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 x86_bus_space_io_write_1(3f8,0,2d) at x86_bus_space_io_write_1+0x40 sys/arch/amd64/amd64/bus_space.c:774 comcnputc(800,2d) at comcnputc+0x1ab bus_space_barrier machine/bus.h:481 [inline] comcnputc(800,2d) at comcnputc+0x1ab sys/dev/ic/com.c:1263 cnputc(2d) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(2d) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff83409566) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833acb84) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c446290,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c446290) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800010fe1000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(21e5f,81,2000,ffff8000fffe7c68) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(21e5f,81,2000,ffff8000fffe7c68) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c446440) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068e516e0,81,fffffd807f7d26e8,ffff8000fffe7c68) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd80634d3ea8,ffff8000fffe7c68) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd80634d3ea8,ffff8000fffe7c68) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd80634d3ea8,ffff8000fffe7c68) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd80634d3ea8,ffff8000fffe7c68) at closef+0x192 sys/kern/kern_descrip.c:1249 fdfree(ffff8000fffe7c68) at fdfree+0x116 sys/kern/kern_descrip.c:1181 exit1(ffff8000fffe7c68,b,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff8000fffe7c68,ffff80003c4467b0,ffff80003c446700) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c4467b0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4467b0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7956c00ab2a0, count: -25