*cpu1: uvm_fault(0xfffffd805f225988, 0x0, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x723f5ea34cb0, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a2c8370 rbx 0 rdx 0 rcx 0xffff80003c4599c8 rax 0x2a r8 0xffff80002a2c82a0 r9 0 r10 0x45bb3869baf4367e r11 0x727beeb52d030d3d r12 0 r13 0 r14 0 r15 0 rip 0xffffffff823584c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff80002a2c82f0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x680 ddb{0}> show proc PROC (syz-executor) tid=133939 pid=23687 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=0xffff80003c4562c8,0xffffffff83949ea8 process=0xffff80003c426eb0 user=0xffff80002a2c3000, vmspace=0xfffffd8072869210 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *23687 133939 30972 0 7 0 syz-executor 95195 302409 26307 0 3 0x3000 suspend syz-executor 95195 420828 26307 0 2 0x4081080 syz-executor 95195 179526 26307 0 2 0x4081080 syz-executor 44081 464722 2238 0 3 0x90 nanoslp syz-executor 44081 356840 2238 0 3 0x4000090 pipewr syz-executor 44081 507633 2238 0 3 0x4000090 fsleep syz-executor 44081 321324 2238 0 3 0x4000090 fsleep syz-executor 68609 283284 1 0 3 0x100083 ttyin getty 49638 120214 54635 0 3 0x2 biowait syz-executor 52703 470449 54635 0 3 0x82 nanoslp syz-executor 30972 149757 54635 0 3 0x82 nanoslp syz-executor 50168 74289 0 0 3 0x14280 nfsidl nfsio 64809 491929 0 0 3 0x14280 nfsidl nfsio 1993 317844 0 0 3 0x14280 nfsidl nfsio 1222 470606 0 0 3 0x14280 nfsidl nfsio 79566 40384 0 0 3 0x14280 nfsidl nfsio 18345 25190 0 0 3 0x14280 nfsidl nfsio 7867 441959 0 0 3 0x14280 nfsidl nfsio 3999 316146 0 0 3 0x14280 nfsidl nfsio 97966 81680 0 0 3 0x14280 nfsidl nfsio 76746 202254 0 0 3 0x14280 nfsidl nfsio 98537 245716 0 0 3 0x14280 nfsidl nfsio 54462 380038 0 0 3 0x14280 nfsidl nfsio 59798 461817 0 0 3 0x14280 nfsidl nfsio 38343 37376 0 0 3 0x14280 nfsidl nfsio 2147 388206 0 0 3 0x14280 nfsidl nfsio 78707 269097 0 0 3 0x14280 nfsidl nfsio 62439 331759 0 0 3 0x14280 nfsidl nfsio 84065 321531 0 0 3 0x14280 nfsidl nfsio 4405 462954 0 0 3 0x14280 nfsidl nfsio 60024 270462 0 0 3 0x14280 nfsidl nfsio 52777 391067 0 0 3 0x14200 bored sosplice 26307 21621 54635 0 3 0x82 nanoslp syz-executor 3341 87081 54635 0 3 0x82 nanoslp syz-executor 2238 323570 54635 0 3 0x82 nanoslp syz-executor 84867 44827 54635 0 2 0x2 syz-executor 26944 423228 54635 0 3 0x2 biowait syz-executor 54635 202289 14646 0 3 0x82 kqread syz-executor 14646 171632 71588 0 3 0x10008a sigsusp ksh 71588 154609 80260 0 3 0x98 kqread sshd-session 80260 393646 49063 0 3 0x92 kqread sshd-session 49063 486589 1 0 3 0x88 kqread sshd 12745 166878 97041 74 3 0x1100092 bpf pflogd 97041 482896 1 0 3 0x80 sbwait pflogd 36393 361065 83682 73 3 0x1100090 kqread syslogd 83682 506115 1 0 3 0x100082 sbwait syslogd 49409 31059 1 0 3 0x100080 kqread resolvd 14427 229358 712 77 3 0x100092 kqread dhcpleased 36594 124148 712 77 3 0x100092 kqread dhcpleased 712 59493 1 0 3 0x80 kqread dhcpleased 23322 234482 0 0 3 0x14200 bored smr 12952 170791 0 0 3 0x14200 pgzero zerothread 37443 60957 0 0 3 0x14200 aiodoned aiodoned 34292 3589 0 0 3 0x14200 syncer update 64839 480936 0 0 3 0x14200 cleaner cleaner 59605 211288 0 0 3 0x14200 reaper reaper 78479 406105 0 0 3 0x14200 pgdaemon pagedaemon 87271 354763 0 0 3 0x14200 bored viomb 45820 189602 0 0 3 0x40014200 acpi0 acpi0 45779 275969 0 0 3 0x40014200 idle1 25547 232737 0 0 3 0x14200 bored softnet3 28335 399677 0 0 3 0x14200 bored softnet2 87849 195323 0 0 3 0x14200 bored softnet1 25545 416864 0 0 3 0x14200 bored softnet0 15526 123224 0 0 3 0x14200 bored systqmp 81786 180180 0 0 3 0x14200 bored systq 62403 127166 0 0 3 0x14200 tmoslp softclockmp 17025 76130 0 0 3 0x40014200 tmoslp softclock 64421 159710 0 0 3 0x40014200 idle0 1 193733 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{0}> show all locks Process 23687 (syz-executor) thread 0xffff80003c4599c8 (133939) exclusive rwlock amaplk r = 0 (0xfffffd805f5856a0) #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_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 (0xfffffd8072869310) #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 Process 49638 (syz-executor) thread 0xffff80003c458f88 (120214) exclusive rrwlock inode r = 0 (0xfffffd806b7bb640) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3117 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806de80658) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3102 #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 Process 26944 (syz-executor) thread 0xffff80002a2b42a8 (423228) exclusive rrwlock inode r = 0 (0xfffffd806dd63c10) #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 ufs_ihashins+0x4f ufs_ihash sys/ufs/ufs/ufs_ihash.c:-1 [inline] #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:159 #5 ffs_vget+0x187 sys/ufs/ffs/ffs_vfsops.c:1230 #6 ffs_inode_alloc+0x283 sys/ufs/ffs/ffs_alloc.c:393 #7 ufs_mkdir+0x113 sys/ufs/ufs/ufs_vnops.c:1112 #8 VOP_MKDIR+0x102 sys/kern/vfs_vops.c:394 #9 domkdirat+0x179 sys/kern/vfs_syscalls.c:3117 #10 syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806ccda1f0) #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3102 #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 10264 11461K 11794K 166960K 12817 0 pcb 17 14K 16K 166960K 268 0 rtable 209 8K 9K 166960K 535 0 pf 32 17K 20K 166960K 137 0 ifaddr 38 6K 7K 166960K 99 0 ifgroup 51 2K 2K 166960K 161 0 sysctl 4 1K 1K 166960K 4 0 counters 62 36K 37K 166960K 162 0 ioctlops 0 0K 4K 166960K 1675 0 iov 0 0K 36K 166960K 82 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1499 94K 94K 166960K 2362 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 16 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 44 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 15 53K 106K 166960K 989 0 sigio 0 0K 0K 166960K 8 0 proc 73 91K 152K 166960K 707 0 subproc 72 4K 4K 166960K 99 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 198 0 in_multi 84 6K 7K 166960K 167 0 ether_multi 1 0K 0K 166960K 6 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 229 1023K 1023K 166960K 229 0 exec 0 0K 1K 166960K 555 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 227 168K 187K 166960K 10468 0 UVM aobj 91 3K 3K 166960K 91 0 pinsyscall 40 80K 104K 166960K 2167 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 49 0 NDP 11 0K 2K 166960K 65 0 temp 62 8688K 8756K 166960K 40915 0 kqueue 13 20K 30K 166960K 177 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 81 0 78 1 0 1 1 0 8 0 rtentry 176 170 0 79 6 0 6 6 0 8 0 unpcb 144 726 0 642 11 7 4 6 0 8 0 syncache 336 8 0 8 3 3 0 1 0 8 0 tcpcb 808 300 0 293 11 4 7 7 0 8 6 arp 128 26 0 10 1 0 1 1 0 8 0 inpcb 384 1108 0 1098 19 9 10 14 0 8 8 nd6 144 37 0 14 1 0 1 1 0 8 0 pkpcb 40 6 0 6 3 2 1 1 0 8 1 kcovpl 48 11 0 3 1 0 1 1 0 8 0 ppxss 1192 31 0 31 2 1 1 1 0 8 1 pppxif 1504 8 0 8 2 1 1 1 0 8 1 pffrag 232 2 0 1 1 0 1 1 0 482 0 pffrnode 88 2 0 1 1 0 1 1 0 8 0 pffrent 40 3 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 1 0 1 1 1 0 1 0 8 0 pfstitem 24 75 0 19 1 0 1 1 0 8 0 pfstkey 128 75 0 19 2 0 2 2 0 8 0 pfstate 384 75 0 19 6 0 6 6 0 8 0 pfrule 1344 24 0 19 2 1 1 2 0 8 0 art_heap8 4096 3 0 0 3 0 3 3 0 8 0 art_heap4 256 730 0 322 34 7 27 29 0 8 0 art_table 32 733 0 322 4 0 4 4 0 8 0 art_node 16 165 0 83 1 0 1 1 0 8 0 sysvmsgpl 40 16 0 10 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 40 0 30 1 0 1 1 0 8 0 shmpl 112 88 0 0 3 0 3 3 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 3060 0 1554 95 0 95 95 0 8 0 ffsino 288 3060 0 1554 109 0 109 109 0 8 0 nchpl 144 4408 0 2706 64 0 64 64 0 8 0 rtmask 32 5 0 5 2 2 0 1 0 8 0 uvmvnodes 80 3875 0 0 80 0 80 80 0 8 0 vnodes 216 3875 0 0 216 0 216 216 0 8 0 namei 1024 15787 0 15785 4 2 2 2 0 8 1 percpumem 16 96 0 50 1 0 1 1 0 8 0 kstatmem 264 86 0 64 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 1 0 1 1 0 1 1 0 8 1 scxspl 216 13392 0 13390 11 10 1 8 1 8 0 plimitpl 152 340 0 323 1 0 1 1 0 8 0 sigapl 424 1302 0 1234 9 0 9 9 0 8 0 futexpl 64 12620 0 12616 1 0 1 1 0 8 0 knotepl 120 566 0 0 17 0 17 17 0 8 0 kqueuepl 224 403 0 394 7 2 5 5 0 8 4 pipepl 336 244 0 215 3 0 3 3 0 8 0 fdescpl 520 1262 0 1233 3 0 3 3 0 8 0 filepl 160 7963 0 7637 30 11 19 20 0 8 5 lockfpl 104 293 0 258 1 0 1 1 0 8 0 lockfspl 48 140 0 105 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 104 965 0 951 1 0 1 1 0 8 0 zombiepl 144 1236 0 1234 2 1 1 1 0 8 0 processpl 1192 1302 0 1234 6 0 6 6 0 8 0 procpl 656 2704 0 2631 8 0 8 8 0 8 0 srpgc 96 12 0 12 1 1 0 1 0 8 0 sosppl 168 6 0 6 2 1 1 1 0 8 1 sockpl 728 1931 0 1834 27 15 12 18 0 8 2 mcl64k 65536 6 0 0 1 0 1 1 0 8 0 mcl16k 16384 2 0 0 1 0 1 1 0 8 0 mcl9k 9216 3 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 117 0 0 15 0 15 15 0 8 0 mcl2k 2048 34 0 0 5 0 5 5 0 8 0 mtagpl 96 95 0 0 3 0 3 3 0 8 0 mbufpl 256 269 0 0 16 0 16 16 0 8 0 bufpl 280 4945 0 130 344 0 344 344 0 8 0 anonpl 32 7630 0 0 62 0 62 62 0 246 0 amapchunkpl 152 34127 0 33685 41 13 28 31 0 158 4 amappl16 200 3275 0 3242 27 16 11 15 0 8 8 amappl15 192 4 0 4 1 1 0 1 0 8 0 amappl14 184 134 0 122 1 0 1 1 0 8 0 amappl13 176 2 0 2 1 1 0 1 0 8 0 amappl12 168 1958 0 1929 4 1 3 3 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 28 0 27 1 0 1 1 0 8 0 amappl9 144 244 0 244 1 1 0 1 0 8 0 amappl8 136 25 0 23 1 0 1 1 0 8 0 amappl7 128 122 0 109 1 0 1 1 0 8 0 amappl6 120 216 0 213 1 0 1 1 0 8 0 amappl5 112 139 0 129 1 0 1 1 0 8 0 amappl4 104 343 0 324 1 0 1 1 0 8 0 amappl3 96 6852 0 6751 4 0 4 4 0 8 0 amappl2 88 723 0 660 2 0 2 2 0 8 0 amappl1 80 12949 0 12353 17 3 14 15 0 8 0 amappl 88 9526 0 9374 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 dma512 512 1 0 1 1 1 0 1 0 8 0 dma256 256 7 0 7 2 2 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 90 0 0 2 0 2 2 0 8 0 uaddrrnd 24 1262 0 1233 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1262 0 1233 1 0 1 1 0 8 0 vmmpekpl 168 12127 0 12070 3 0 3 3 0 8 0 vmmpepl 168 84704 0 82819 109 12 97 101 0 357 4 vmsppl 480 1261 0 1233 7 2 5 5 0 8 0 rwobjpl 72 27799 0 22909 93 3 90 90 0 8 0 pdppl 4096 2531 0 2466 115 44 71 85 0 8 6 pvpl 32 16159 0 0 131 0 131 131 0 265 0 pmappl 256 1261 0 1233 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 427 0 64 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: 0x723f5ea34cb0, 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_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(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(65) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833fb439) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8339e3d3) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c469970,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c469970) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80003c469a50, 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_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(800,65) at comcnputc+0x29b sys/dev/ic/com.c:1269 cnputc(65) at cnputc+0x61 sys/dev/cons.c:218 db_putchar(65) at db_putchar+0x65c sys/ddb/db_output.c:155 kprintf() at kprintf+0x2aba sys/kern/subr_prf.c:1065 db_printf(ffffffff833fb439) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff8339e3d3) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80003c469970,0) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80003c469970) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dt_ioctl_record_stop(ffff800000afb000) at dt_ioctl_record_stop+0xf0 sys/dev/dt/dt_dev.c:579 dtclose(11e5f,81,2000,ffff80003c4562c8) at dtclose+0x105 dt_pcb_purge sys/dev/dt/dt_dev.c:-1 [inline] dtclose(11e5f,81,2000,ffff80003c4562c8) at dtclose+0x105 sys/dev/dt/dt_dev.c:232 spec_close(ffff80003c469b20) at spec_close+0x45f sys/kern/spec_vnops.c:-1 VOP_CLOSE(fffffd807335e540,81,fffffd807f7d3680,ffff80003c4562c8) at VOP_CLOSE+0x133 sys/kern/vfs_vops.c:156 vn_closefile(fffffd805da89d48,ffff80003c4562c8) at vn_closefile+0x12b vn_close sys/kern/vfs_vnops.c:292 [inline] vn_closefile(fffffd805da89d48,ffff80003c4562c8) at vn_closefile+0x12b sys/kern/vfs_vnops.c:615 fdrop(fffffd805da89d48,ffff80003c4562c8) at fdrop+0x126 sys/kern/kern_descrip.c:1265 closef(fffffd805da89d48,ffff80003c4562c8) at closef+0x192 sys/kern/kern_descrip.c:1249 fdfree(ffff80003c4562c8) at fdfree+0x116 sys/kern/kern_descrip.c:1181 exit1(ffff80003c4562c8,0,0,1) at exit1+0x58f sys/kern/kern_exit.c:214 sys_exit(ffff80003c4562c8,ffff80003c469e90,ffff80003c469de0) at sys_exit+0x1a sys/kern/kern_exit.c:-1 syscall(ffff80003c469e90) at syscall+0xb08 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c469e90) at syscall+0xb08 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x79dcceab63b0, count: -26