*cpu1: uvm_fault(0xfffffd806bed1798, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x7e7b94cb7140, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80003c449300 rbx 0 rdx 0 rcx 0xffff80003a3f4030 rax 0x2a r8 0xffff80003c449230 r9 0x1 r10 0x31939ef0c3bd092 r11 0x7081f18dca41fbbb r12 0 r13 0 r14 0 r15 0 rip 0xffffffff825fe4c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80003c449280 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=80323 pid=59395 tcnt=2 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=0xffff80002a2ab9c0,0xffff80003a3f54c0 process=0xffff80003a3f0998 user=0xffff80003c444000, vmspace=0xfffffd806bed13d8 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=1, intr=1 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *59395 80323 74126 0 7 0 syz-executor 59395 396668 74126 0 3 0x4000080 fsleep syz-executor 60368 310636 38616 0 2 0 syz-executor 60368 179321 38616 0 3 0x4000080 fsleep syz-executor 50028 26816 14158 0 3 0x80 nanoslp syz-executor 50028 143063 14158 0 3 0x4000080 pipewr syz-executor 50028 313954 14158 0 3 0x4000080 fsleep syz-executor 75004 112982 0 0 3 0x14280 nfsidl nfsio 45511 272692 0 0 3 0x14280 nfsidl nfsio 95838 124250 0 0 3 0x14280 nfsidl nfsio 8178 401519 0 0 3 0x14280 nfsidl nfsio 9344 338311 0 0 3 0x14280 nfsidl nfsio 8349 467063 0 0 3 0x14280 nfsidl nfsio 44009 241722 0 0 3 0x14280 nfsidl nfsio 44186 147397 0 0 3 0x14280 nfsidl nfsio 60570 494706 0 0 3 0x14280 nfsidl nfsio 91564 180078 0 0 3 0x14280 nfsidl nfsio 48073 508569 0 0 3 0x14280 nfsidl nfsio 78469 413594 0 0 3 0x14280 nfsidl nfsio 64937 469861 0 0 3 0x14280 nfsidl nfsio 46559 150871 0 0 3 0x14280 nfsidl nfsio 25181 175452 0 0 3 0x14280 nfsidl nfsio 9693 45817 0 0 3 0x14280 nfsidl nfsio 52351 211293 0 0 3 0x14280 nfsidl nfsio 50537 52399 0 0 3 0x14280 nfsidl nfsio 50875 80326 0 0 3 0x14280 nfsidl nfsio 64443 174029 0 0 3 0x14280 nfsidl nfsio 13558 317514 99891 0 3 0x80 nanoslp syz-executor 13558 378111 99891 0 3 0x4000000 biowait syz-executor 80428 144240 69058 0 3 0x80 nanoslp syz-executor 80428 115053 69058 0 3 0x4000080 kqread syz-executor 80428 96428 69058 0 3 0x4000080 fsleep syz-executor 80428 480588 69058 0 3 0x4000080 fsleep syz-executor 38616 284419 35882 0 3 0x82 nanoslp syz-executor 9066 155118 1 0 3 0x100083 ttyin getty 14158 484414 35882 0 3 0x82 nanoslp syz-executor 96264 489500 0 0 3 0x14200 bored sosplice 74126 108437 35882 0 3 0x82 nanoslp syz-executor 71897 310001 52381 0 3 0x100082 sbwait arp 52381 199638 54908 0 3 0x10008a sigsusp sh 27929 55455 35882 0 3 0x82 nanoslp syz-executor 54908 396915 35882 0 3 0x82 wait syz-executor 69058 450371 35882 0 3 0x82 nanoslp syz-executor 99891 86019 35882 0 3 0x82 nanoslp syz-executor 64 295967 35882 0 3 0x82 nanoslp syz-executor 35882 11964 32616 0 3 0x82 kqread syz-executor 32616 418931 84994 0 3 0x10008a sigsusp ksh 84994 361928 44018 0 3 0x98 kqread sshd-session 44018 339565 41364 0 3 0x92 kqread sshd-session 41364 146738 1 0 3 0x88 kqread sshd 10544 247169 22998 74 3 0x1100092 bpf pflogd 22998 243211 1 0 3 0x80 sbwait pflogd 1339 293231 44346 73 3 0x1100090 kqread syslogd 44346 432145 1 0 3 0x100082 sbwait syslogd 62193 301699 1 0 3 0x100080 kqread resolvd 86312 159058 68142 77 3 0x100092 kqread dhcpleased 495 450634 68142 77 3 0x100092 kqread dhcpleased 68142 62592 1 0 3 0x80 kqread dhcpleased 64366 151509 0 0 3 0x14200 bored smr 63848 524026 0 0 3 0x14200 pgzero zerothread 63237 439388 0 0 3 0x14200 aiodoned aiodoned 28557 136733 0 0 3 0x14200 syncer update 16054 483598 0 0 3 0x14200 cleaner cleaner 37336 54242 0 0 3 0x14200 reaper reaper 93490 474066 0 0 3 0x14200 pgdaemon pagedaemon 95898 446375 0 0 3 0x14200 bored viomb 10617 369398 0 0 3 0x40014200 acpi0 acpi0 3768 411698 0 0 3 0x40014200 idle1 73868 514017 0 0 3 0x14200 bored softnet3 50587 503307 0 0 3 0x14200 bored softnet2 62695 172345 0 0 3 0x14200 bored softnet1 13330 195401 0 0 3 0x14200 bored softnet0 92050 210165 0 0 3 0x14200 bored systqmp 19897 92580 0 0 3 0x14200 bored systq 86149 446162 0 0 3 0x14200 tmoslp softclockmp 29857 69522 0 0 3 0x40014200 tmoslp softclock 89264 272880 0 0 3 0x40014200 idle0 1 423612 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 (0xfffffd806bd34710) #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_lookup+0x3d6 sys/uvm/uvm_fault.c:-1 #5 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1370 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 59395 (syz-executor) thread 0xffff80003a3f4030 (80323) exclusive rwlock uobjlk r = 0 (0xfffffd8074c03150) #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+0x367 sys/kern/kern_rwlock.c:311 #2 uvm_fault_lower_lookup+0x53 sys/uvm/uvm_fault.c:1236 #3 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1370 #4 uvm_fault+0x278 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 (0xfffffd806bed14d8) #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+0x36e sys/kern/kern_rwlock.c:398 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1924 #3 uvm_fault_check+0x4a sys/uvm/uvm_fault.c:741 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #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 (0xfffffd806bd34710) #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_lookup+0x3d6 sys/uvm/uvm_fault.c:-1 #5 uvm_fault_lower+0x89 sys/uvm/uvm_fault.c:1370 #6 uvm_fault+0x278 sys/uvm/uvm_fault.c:-1 #7 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #8 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #9 recall_trap+0x8 Process 13558 (syz-executor) thread 0xffff8000ffff02b8 (378111) exclusive rrwlock inode r = 0 (0xfffffd806df1e8a8) #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+0x367 sys/kern/kern_rwlock.c:311 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:606 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 vn_write+0x190 sys/kern/vfs_vnops.c:405 #6 dofilewritev+0x23c sys/kern/sys_generic.c:380 #7 sys_write+0xa2 sys/kern/sys_generic.c:300 #8 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10235 11190K 11589K 166960K 12870 0 pcb 17 18K 20K 166960K 318 0 rtable 213 8K 9K 166960K 562 0 pf 36 17K 21K 166960K 115 0 ifaddr 39 6K 7K 166960K 95 0 ifgroup 59 2K 2K 166960K 149 0 sysctl 4 1K 9K 166960K 17 0 counters 70 37K 37K 166960K 152 0 ioctlops 0 0K 4K 166960K 1571 0 iov 0 0K 24K 166960K 38 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1473 93K 93K 166960K 2404 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 33 0 dirhash 12 2K 2K 166960K 24 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 19 69K 93K 166960K 947 0 sigio 0 0K 0K 166960K 8 0 proc 72 91K 128K 166960K 721 0 subproc 72 4K 4K 166960K 108 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 114 0 in_multi 78 5K 6K 166960K 171 0 ether_multi 1 0K 0K 166960K 6 0 mrt 1 0K 0K 166960K 10 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 85 387K 387K 166960K 85 0 exec 0 0K 1K 166960K 496 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 265 178K 179K 166960K 10526 0 UVM aobj 18 2K 4K 166960K 22 0 pinsyscall 45 90K 106K 166960K 2183 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 13 0K 1K 166960K 61 0 temp 47 8676K 8743K 166960K 39318 0 kqueue 15 24K 28K 166960K 167 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 120 152 0 148 3 0 3 3 0 8 2 rtentry 176 171 0 78 5 0 5 5 0 8 0 unpcb 144 694 0 675 5 1 4 4 0 8 3 syncache 336 7 0 7 3 2 1 1 0 8 1 tcpcb 808 422 0 418 15 7 8 8 0 8 7 arp 128 28 0 10 1 0 1 1 0 8 0 inpcb 384 1418 0 1408 41 32 9 21 0 8 8 nd6 144 36 0 17 1 0 1 1 0 8 0 pkpcb 40 73 0 73 3 2 1 1 0 8 1 kcovpl 48 12 0 4 1 0 1 1 0 8 0 ppxss 1192 26 0 26 2 1 1 1 0 8 1 pppxif 1504 8 0 8 2 1 1 1 0 8 1 pffrag 232 3 0 0 1 0 1 1 0 482 0 pffrnode 88 3 0 0 1 0 1 1 0 8 0 pffrent 40 5 0 1 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 60 0 7 1 0 1 1 0 8 0 pfstkey 128 60 0 7 2 0 2 2 0 8 0 pfstate 384 60 0 7 6 0 6 6 0 8 0 pfrule 1344 25 0 19 2 1 1 2 0 8 0 rttmr 136 3 0 3 2 1 1 1 0 8 1 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 753 0 378 28 1 27 27 0 8 0 art_table 32 754 0 378 4 0 4 4 0 8 0 art_node 16 167 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 11 0 9 2 1 1 1 0 8 0 semapl 112 28 0 18 1 0 1 1 0 8 0 shmpl 112 19 0 4 1 0 1 1 0 8 0 dirhash 1024 25 0 8 3 0 3 3 0 8 0 dino2pl 256 3001 0 1486 95 0 95 95 0 8 0 ffsino 288 3001 0 1486 109 0 109 109 0 8 0 nchpl 144 4316 0 3767 64 32 32 64 0 8 8 rtmask 32 2 0 2 1 1 0 1 0 8 0 uvmvnodes 80 2757 0 0 57 0 57 57 0 8 0 vnodes 216 2757 0 0 154 0 154 154 0 8 0 namei 1024 14819 0 14819 3 2 1 2 0 8 1 percpumem 16 91 0 41 1 0 1 1 0 8 0 kstatmem 264 82 0 52 4 1 3 3 0 8 0 scsiplug 72 5 0 5 2 1 1 1 0 8 1 scxspl 216 13302 0 13301 10 2 8 8 1 8 7 plimitpl 152 190 0 172 1 0 1 1 0 8 0 sigapl 424 1275 0 1203 10 1 9 9 0 8 0 knotepl 120 551 0 0 17 0 17 17 0 8 0 kqueuepl 224 427 0 416 7 2 5 5 0 8 4 pipepl 336 290 0 262 13 8 5 11 0 8 2 fdescpl 520 1235 0 1202 3 0 3 3 0 8 0 filepl 160 8277 0 8043 29 11 18 23 0 8 7 lockfpl 104 378 0 376 2 1 1 2 0 8 0 lockfspl 48 163 0 161 1 0 1 1 0 8 0 sessionpl 144 31 0 22 1 0 1 1 0 8 0 pgrppl 48 47 0 30 1 0 1 1 0 8 0 ucredpl 104 813 0 799 1 0 1 1 0 8 0 zombiepl 144 1205 0 1203 1 0 1 1 0 8 0 processpl 1208 1275 0 1203 6 0 6 6 0 8 0 procpl 656 2591 0 2511 9 1 8 8 0 8 1 srpgc 96 10 0 10 3 2 1 1 0 8 1 sosppl 168 4 0 4 2 1 1 1 0 8 1 sockpl 728 2374 0 2342 42 29 13 22 0 8 9 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl12k 12288 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 105 0 0 14 0 14 14 0 8 0 mcl2k 2048 38 0 0 4 0 4 4 0 8 0 mtagpl 96 39 0 0 1 0 1 1 0 8 0 mbufpl 256 262 0 0 16 0 16 16 0 8 0 bufpl 280 4005 0 126 278 0 278 278 0 8 0 anonpl 32 7754 0 0 63 0 63 63 0 246 0 amapchunkpl 152 33523 0 32839 28 1 27 27 0 158 0 amappl16 200 3257 0 3145 20 10 10 15 0 8 4 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 145 0 132 1 0 1 1 0 8 0 amappl13 176 11 0 11 3 3 0 1 0 8 0 amappl12 168 1976 0 1942 4 1 3 3 0 8 0 amappl11 160 52 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 3 2 1 1 0 8 1 amappl9 144 274 0 272 1 0 1 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 120 0 106 1 0 1 1 0 8 0 amappl6 120 229 0 224 1 0 1 1 0 8 0 amappl5 112 141 0 131 1 0 1 1 0 8 0 amappl4 104 352 0 331 1 0 1 1 0 8 0 amappl3 96 6606 0 6483 5 1 4 4 0 8 0 amappl2 88 802 0 735 2 0 2 2 0 8 0 amappl1 80 12633 0 12001 16 1 15 15 0 8 0 amappl 88 9584 0 9399 5 0 5 5 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 128 254 0 254 2 2 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 21 0 4 1 0 1 1 0 8 0 uaddrrnd 24 1236 0 1203 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1236 0 1203 1 0 1 1 0 8 0 vmmpekpl 168 11563 0 11511 3 0 3 3 0 8 0 vmmpepl 168 83532 0 81367 105 6 99 99 0 357 4 vmsppl 480 1235 0 1203 5 0 5 5 0 8 0 rwobjpl 72 26218 0 22362 73 0 73 73 0 8 2 pdppl 4096 2479 0 2406 107 32 75 87 0 8 2 pvpl 32 14668 0 0 119 0 119 119 0 265 0 pmappl 256 1235 0 1203 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 420 0 54 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: 0x7e7b94cb7140, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff8000299ddff0) 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+0x58 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x58 sys/dev/acpi/acpitimer.c:120 comcnputc(800,2d) at comcnputc+0x29b sys/dev/ic/com.c:1269 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(ffffffff83400e7d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833a0445) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c40e080,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c40e080) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003c40e160, count: 0 ddb{1}> trace x86_ipi_db(ffff8000299ddff0) 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+0x58 acpitimer_read sys/dev/acpi/acpitimer.c:141 [inline] acpitimer_delay(1) at acpitimer_delay+0x58 sys/dev/acpi/acpitimer.c:120 comcnputc(800,2d) at comcnputc+0x29b sys/dev/ic/com.c:1269 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(ffffffff83400e7d) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff833a0445) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c40e080,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c40e080) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800001489000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(31e5f,81,2000,ffff80003c41f228) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(31e5f,81,2000,ffff80003c41f228) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c40e230) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd806bbf58b0,81,fffffd807f7d33a8,ffff80003c41f228) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd806c413208,ffff80003c41f228) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd806c413208,ffff80003c41f228) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd806c413208,ffff80003c41f228) at fdrop+0x126 sys/kern/kern_descrip.c:1267 closef(fffffd806c413208,ffff80003c41f228) at closef+0x192 sys/kern/kern_descrip.c:1251 fdfree(ffff80003c41f228) at fdfree+0x116 sys/kern/kern_descrip.c:1182 exit1(ffff80003c41f228,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff80003c41f228,ffff80003c40e5a0,ffff80003c40e4f0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c40e5a0) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c40e5a0) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x74d9e42bbf60, count: -26