*cpu1: uvm_fault(0xfffffd806eb54398, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7a560c5c5950, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c5b9c40 rbx 0 rdx 0 rcx 0xffff8000330a39c0 rax 0x2a r8 0xffff80003c5b9b70 r9 0x96476317001 r10 0xc8476060bb67af6b r11 0x4ac127e9cfd8af4f r12 0 r13 0 r14 0 r15 0 rip 0xffffffff819344c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c5b9bc0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=182424 pid=10855 tcnt=1 stat=onproc flags process=0 proc=0 runpri=50, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003bce14b0,0xffffffff839d9638 process=0xffff8000ffff6980 user=0xffff80003c5b4000, vmspace=0xfffffd807e007020 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *10855 182424 50744 0 7 0 syz-executor 24152 142789 40711 0 3 0 futex syz-executor 24152 133324 40711 0 3 0x4000080 fsleep syz-executor 24152 33770 40711 0 3 0x4000080 fsleep syz-executor 60261 155308 3177 0 2 0 syz-executor 60261 423132 3177 0 2 0x4000080 syz-executor 69852 215256 78715 0 2 0 syz-executor 69852 67538 78715 0 2 0x4000000 syz-executor 37348 100560 46675 -1 2 0x10 syz-executor 37348 340577 46675 -1 3 0x4000090 kqread syz-executor 42970 249944 23174 0 3 0x80 nanoslp syz-executor 42970 344311 23174 0 3 0x4000080 kqsel syz-executor 42970 203758 23174 0 3 0x4000080 fsleep syz-executor 73343 298800 8482 0 3 0x80 nanoslp syz-executor 73343 401134 8482 0 3 0x4000080 kqsel syz-executor 73343 8483 8482 0 3 0x4000080 msgwait syz-executor 73343 311398 8482 0 3 0x4000080 fsleep syz-executor 70876 82316 0 0 3 0x14200 acct acct 89923 496801 0 0 3 0x14280 nfsidl nfsio 48705 157597 0 0 3 0x14280 nfsidl nfsio 86470 239429 0 0 3 0x14280 nfsidl nfsio 23552 118192 0 0 3 0x14280 nfsidl nfsio 1811 283799 0 0 3 0x14280 nfsidl nfsio 32108 232783 0 0 3 0x14280 nfsidl nfsio 15750 37760 0 0 3 0x14280 nfsidl nfsio 82496 160360 0 0 3 0x14280 nfsidl nfsio 31740 422115 0 0 3 0x14280 nfsidl nfsio 46372 287678 0 0 3 0x14280 nfsidl nfsio 41063 67429 0 0 3 0x14280 nfsidl nfsio 7201 10968 0 0 3 0x14280 nfsidl nfsio 4771 186455 0 0 3 0x14280 nfsidl nfsio 84616 116883 0 0 3 0x14280 nfsidl nfsio 379 315945 0 0 3 0x14280 nfsidl nfsio 58258 516057 0 0 3 0x14280 nfsidl nfsio 74117 394966 0 0 3 0x14280 nfsidl nfsio 28623 68808 0 0 3 0x14280 nfsidl nfsio 6811 130400 0 0 3 0x14280 nfsidl nfsio 33525 37818 0 0 3 0x14280 nfsidl nfsio 59815 254215 0 0 3 0x14200 bored sosplice 46675 410915 57213 0 3 0x82 nanoslp syz-executor 53242 250857 57213 0 3 0x82 nanoslp syz-executor 50744 57573 57213 0 3 0x82 nanoslp syz-executor 40711 138544 57213 0 3 0x82 nanoslp syz-executor 23174 384880 57213 0 3 0x82 nanoslp syz-executor 78715 103889 57213 0 3 0x82 nanoslp syz-executor 8482 390548 57213 0 3 0x82 nanoslp syz-executor 3177 485779 57213 0 3 0x82 nanoslp syz-executor 57213 159774 5704 0 3 0x82 kqread syz-executor 5704 36625 6537 0 3 0x10008a sigsusp ksh 6537 57964 69057 0 3 0x98 kqread sshd-session 69057 91112 8503 0 3 0x92 kqread sshd-session 90416 49701 1 0 3 0x100083 ttyin getty 8503 226300 1 0 3 0x88 kqread sshd 22544 363682 19968 74 3 0x1100092 bpf pflogd 19968 459452 1 0 3 0x80 sbwait pflogd 21552 515661 74062 73 3 0x1100090 kqread syslogd 74062 106850 1 0 3 0x100082 sbwait syslogd 80244 98865 1 0 3 0x100080 kqread resolvd 25142 177638 75113 77 3 0x100092 kqread dhcpleased 63831 7938 75113 77 3 0x100092 kqread dhcpleased 75113 352793 1 0 3 0x80 kqread dhcpleased 30067 198825 0 0 3 0x14200 bored smr 58115 291631 0 0 3 0x14200 pgzero zerothread 71157 452454 0 0 3 0x14200 aiodoned aiodoned 93236 901 0 0 3 0x14200 syncer update 10188 381167 0 0 3 0x14200 cleaner cleaner 11876 90926 0 0 2 0x14200 reaper 45943 46473 0 0 3 0x14200 pgdaemon pagedaemon 43921 312159 0 0 3 0x14200 bored viomb 34615 4978 0 0 3 0x40014200 acpi0 acpi0 46253 200268 0 0 3 0x40014200 idle1 13893 238645 0 0 3 0x14200 bored softnet3 79290 61352 0 0 3 0x14200 bored softnet2 56510 397060 0 0 3 0x14200 bored softnet1 6055 194393 0 0 3 0x14200 bored softnet0 28608 96832 0 0 3 0x14200 bored systqmp 64577 95336 0 0 3 0x14200 bored systq 55065 273235 0 0 3 0x14200 tmoslp softclockmp 92327 415423 0 0 3 0x40014200 tmoslp softclock 19168 467690 0 0 3 0x40014200 idle0 1 394919 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &pmap->pm_mtx r = 0 (0xfffffd806bc80210) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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_upper+0x32f sys/uvm/uvm_fault.c:1098 #5 uvm_fault+0x19c sys/uvm/uvm_fault.c:674 #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 10855 (syz-executor) thread 0xffff8000330a39c0 (182424) exclusive rwlock amaplk r = 0 (0xfffffd807e2dc220) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 uvm_fault_check+0x54c sys/uvm/uvm_fault.c:844 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:666 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #5 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffffd807e007120) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 (0xfffffd806bc80210) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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_upper+0x32f sys/uvm/uvm_fault.c:1098 #5 uvm_fault+0x19c sys/uvm/uvm_fault.c:674 #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 11876 (reaper) thread 0xffff80002a2f8cd8 (90926) exclusive rwlock kmmaplk r = 0 (0xffffffff839368d8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5250 #3 uvm_unmap+0x81 sys/uvm/uvm_map.c:1792 #4 km_free+0x87 sys/uvm/uvm_km.c:831 #5 uvm_uarea_free+0x4f sys/uvm/uvm_glue.c:285 #6 reaper+0x1fe sys/kern/kern_exit.c:467 #7 proc_trampoline+0x10 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10217 11140K 11357K 166960K 11841 0 pcb 19 12K 12K 166960K 97 0 rtable 258 10K 10K 166960K 462 0 pf 38 18K 22K 166960K 201 0 ifaddr 46 8K 8K 166960K 56 0 ifgroup 59 2K 2K 166960K 74 0 sysctl 4 1K 1K 166960K 6 0 counters 66 36K 37K 166960K 88 0 ioctlops 0 0K 4K 166960K 1559 0 iov 0 0K 14K 166960K 29 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1372 86K 87K 166960K 1840 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 24 0 dirhash 12 2K 3K 166960K 21 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 606 0 sigio 0 0K 0K 166960K 13 0 proc 73 91K 128K 166960K 576 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 48 0 in_multi 103 7K 7K 166960K 111 0 ether_multi 1 0K 0K 166960K 4 0 mrt 0 0K 0K 166960K 3 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 426 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 243 164K 174K 166960K 7454 0 UVM aobj 17 2K 2K 166960K 18 0 pinsyscall 43 86K 103K 166960K 1736 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 14 0 NDP 13 0K 2K 166960K 35 0 temp 57 8683K 8807K 166960K 19853 0 kqueue 14 22K 27K 166960K 116 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 24 0 0 1 0 1 1 0 8 0 rtpcb 120 69 0 65 1 0 1 1 0 8 0 rtentry 168 132 0 16 6 0 6 6 0 8 0 unpcb 144 283 0 263 5 3 2 3 0 8 1 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 808 169 0 164 7 5 2 4 0 8 1 arp 120 24 0 3 1 0 1 1 0 8 0 inpcb 376 668 0 654 8 2 6 8 0 8 4 nd6 136 26 0 0 1 0 1 1 0 8 0 pkpcb 40 4 0 4 2 2 0 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 ppxss 1168 9 0 9 2 1 1 1 0 8 1 pppxif 1480 1 0 1 1 0 1 1 0 8 1 pffrag 232 6 0 0 1 0 1 1 0 482 0 pffrnode 88 6 0 0 1 0 1 1 0 8 0 pffrent 40 8 0 2 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 pfrktable 1344 8 0 8 1 1 0 1 0 8 0 pfanchor 1288 2 0 0 1 0 1 1 0 8 0 pftag 88 16 0 16 1 1 0 1 0 8 0 pfstitem 24 60 0 16 1 0 1 1 0 8 0 pfstkey 128 60 0 16 2 0 2 2 0 8 0 pfstate 376 60 0 16 5 0 5 5 0 8 0 pfrule 1344 63 0 24 5 1 4 4 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 480 0 14 30 0 30 30 0 8 0 art_table 32 481 0 14 4 0 4 4 0 8 0 art_node 16 128 0 26 1 0 1 1 0 8 0 sysvmsgpl 40 13 0 8 1 0 1 1 0 8 0 semapl 112 20 0 10 1 0 1 1 0 8 0 shmpl 112 15 0 1 1 0 1 1 0 8 0 dirhash 1024 23 0 6 3 0 3 3 0 8 0 dino2pl 256 2541 0 1035 95 0 95 95 0 8 0 ffsino 280 2541 0 1035 109 0 109 109 0 8 0 nchpl 144 3381 0 1691 63 0 63 63 0 8 0 rtmask 32 3 0 3 2 1 1 1 0 8 1 uvmvnodes 80 2864 0 0 59 0 59 59 0 8 0 vnodes 216 2864 0 0 160 0 160 160 0 8 0 namei 1024 11625 0 11625 3 2 1 2 0 8 1 percpumem 16 58 0 11 1 0 1 1 0 8 0 kstatmem 264 36 0 10 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 10721 0 10721 11 10 1 8 1 8 1 plimitpl 152 213 0 196 1 0 1 1 0 8 0 sigapl 424 943 0 871 9 0 9 9 0 8 0 futexpl 64 7247 0 7243 1 0 1 1 0 8 0 knotepl 120 519 0 0 16 0 16 16 0 8 0 kqueuepl 216 179 0 166 2 1 1 2 0 8 0 pipepl 328 182 0 155 6 3 3 6 0 8 0 fdescpl 504 901 0 869 5 0 5 5 0 8 0 filepl 152 5252 0 5028 15 4 11 14 0 8 2 lockfpl 104 114 0 112 1 0 1 1 0 8 0 lockfspl 48 51 0 49 1 0 1 1 0 8 0 sessionpl 144 23 0 14 1 0 1 1 0 8 0 pgrppl 48 33 0 16 1 0 1 1 0 8 0 ucredpl 104 794 0 779 1 0 1 1 0 8 0 zombiepl 144 1094 0 1093 1 0 1 1 0 8 0 processpl 1176 943 0 871 6 0 6 6 0 8 0 procpl 656 1796 0 1712 8 0 8 8 0 8 0 sosppl 168 1 0 1 1 1 0 1 0 8 0 sockpl 688 1038 0 999 11 4 7 10 0 8 2 mcl64k 65536 4 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 5 0 0 1 0 1 1 0 8 0 mcl4k 4096 116 0 0 15 0 15 15 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 38 0 0 1 0 1 1 0 8 0 mbufpl 256 206 0 0 13 0 13 13 0 8 0 bufpl 280 3366 0 125 232 0 232 232 0 8 0 anonpl 24 142219 0 138843 43 14 29 33 0 184 5 amapchunkpl 152 23475 0 22985 33 10 23 28 0 158 3 amappl16 200 2461 0 2429 6 3 3 5 0 8 0 amappl15 192 39 0 39 1 1 0 1 0 8 0 amappl14 184 118 0 105 1 0 1 1 0 8 0 amappl13 176 7 0 7 1 1 0 1 0 8 0 amappl12 168 1564 0 1532 3 1 2 2 0 8 0 amappl11 160 77 0 63 1 0 1 1 0 8 0 amappl10 152 23 0 23 1 1 0 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 23 0 21 1 0 1 1 0 8 0 amappl7 128 113 0 101 1 0 1 1 0 8 0 amappl6 120 185 0 181 1 0 1 1 0 8 0 amappl5 112 125 0 114 1 0 1 1 0 8 0 amappl4 104 335 0 315 1 0 1 1 0 8 0 amappl3 96 4582 0 4470 5 1 4 4 0 8 1 amappl2 88 668 0 604 2 0 2 2 0 8 0 amappl1 80 10354 0 9757 14 0 14 14 0 8 0 amappl 88 6624 0 6455 5 0 5 5 0 92 1 dma16384 16384 2 0 2 2 1 1 1 0 8 1 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma2048 2048 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 128 255 0 255 2 1 1 1 0 8 1 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 17 0 1 1 0 1 1 0 8 0 uaddrrnd 24 901 0 869 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 901 0 869 1 0 1 1 0 8 0 vmmpekpl 168 9288 0 9249 3 0 3 3 0 8 0 vmmpepl 168 61955 0 59941 94 4 90 93 0 357 1 vmsppl 456 900 0 869 5 1 4 5 0 8 0 rwobjpl 64 21234 0 17430 62 0 62 62 0 8 0 pdppl 4096 1810 0 1738 100 28 72 84 0 8 0 pvpl 32 12483 0 0 101 0 101 101 0 265 0 pmappl 248 900 0 869 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 287 0 41 8 0 8 8 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: 0x7a560c5c5950, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029a9bff0) 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_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x77 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x77 sys/dev/acpi/acpitimer.c:120 comcnputc(800,20) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(20) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x524 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(31) at db_putchar+0x524 sys/ddb/db_output.c:153 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833f0197) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83390fe8) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c4f2e10,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c4f2e10) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003c4f2ef0, count: 0 ddb{1}> trace x86_ipi_db(ffff800029a9bff0) 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_read_4(b008,0) at x86_bus_space_io_read_4+0x37 sys/arch/amd64/amd64/bus_space.c:666 acpitimer_delay(1) at acpitimer_delay+0x77 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x77 sys/dev/acpi/acpitimer.c:120 comcnputc(800,20) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(20) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(31) at db_putchar+0x524 db_force_whitespace sys/ddb/db_output.c:102 [inline] db_putchar(31) at db_putchar+0x524 sys/ddb/db_output.c:153 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833f0197) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83390fe8) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c4f2e10,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c4f2e10) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff80000148c000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(11e5f,81,2000,ffff80003c50bc68) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c50bc68) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c4f2fc0) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd8068420be0,81,fffffd807f7d2410,ffff80003c50bc68) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806bb97998,ffff80003c50bc68) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806bb97998,ffff80003c50bc68) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806bb97998,ffff80003c50bc68) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd806bb97998,ffff80003c50bc68) at closef+0x192 sys/kern/kern_descrip.c:1249 fdfree(ffff80003c50bc68) at fdfree+0x116 sys/kern/kern_descrip.c:1181 exit1(ffff80003c50bc68,b,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff80003c50bc68,ffff80003c4f3330,ffff80003c4f3280) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c4f3330) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c4f3330) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x75d860fe6300, count: -26