*cpu1: uvm_fault(0xfffff6800f9dfb98, 0x98, 0, 1) -> e ddb{0}> trace proc_trampoline() at proc_trampoline+0xc7 end of kernel end trace frame: 0x735a7f481b80, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff800030f8b040 rbx 0 rdx 0 rcx 0xffff80003c3b94e0 rax 0x2a r8 0xffff800030f8af70 r9 0 r10 0xcb371575f57baf2a r11 0x3866aaa85e9eb9c6 r12 0 r13 0 r14 0 r15 0 rip 0xffffffff81f904c7 proc_trampoline+0xc7 cs 0x8 rflags 0x246 rsp 0xffff800030f8afc0 ss 0 proc_trampoline+0xc7: movl $0,%gs:0x688 ddb{0}> show proc PROC (syz-executor) tid=6412 pid=15040 tcnt=1 stat=onproc flags process=0 proc=0 runpri=50, usrpri=86, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c3b8a80,0xffff80003c3b9a20 process=0xffff800033010030 user=0xffff800030f86000, vmspace=0xfffff6800f9df028 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND *15040 6412 94097 0 7 0 syz-executor 39830 41726 87868 0 2 0 syz-executor 39830 118104 87868 0 7 0x4000000 syz-executor 39830 201934 87868 0 3 0x4000080 fsleep syz-executor 39830 78369 87868 0 3 0x4000080 fsleep syz-executor 82361 306047 37134 0 2 0 syz-executor 82361 481242 37134 0 3 0x4000080 fsleep syz-executor 82361 13275 37134 0 3 0x4000080 fsleep syz-executor 96348 332050 4643 0 2 0 syz-executor 15632 219790 54037 0 3 0x80 nanoslp syz-executor 15632 150712 54037 0 3 0x4000080 kqread syz-executor 15632 122476 54037 0 3 0x4000080 fsleep syz-executor 70873 67810 0 0 3 0x14280 nfsidl nfsio 68526 102246 0 0 3 0x14280 nfsidl nfsio 34022 204939 0 0 3 0x14280 nfsidl nfsio 3458 160848 0 0 3 0x14280 nfsidl nfsio 79782 54118 0 0 3 0x14280 nfsidl nfsio 26712 506616 0 0 3 0x14280 nfsidl nfsio 99189 331376 0 0 3 0x14280 nfsidl nfsio 81999 478060 0 0 3 0x14280 nfsidl nfsio 46339 491203 0 0 3 0x14280 nfsidl nfsio 82092 114263 0 0 3 0x14280 nfsidl nfsio 42463 148658 0 0 3 0x14280 nfsidl nfsio 92264 88239 0 0 3 0x14280 nfsidl nfsio 61372 30930 0 0 3 0x14280 nfsidl nfsio 40017 318582 0 0 3 0x14280 nfsidl nfsio 43989 264720 0 0 3 0x14280 nfsidl nfsio 71214 422977 0 0 3 0x14280 nfsidl nfsio 18369 467441 0 0 3 0x14280 nfsidl nfsio 83305 418377 0 0 3 0x14280 nfsidl nfsio 86523 219672 0 0 3 0x14280 nfsidl nfsio 36262 239665 0 0 3 0x14280 nfsidl nfsio 65744 259702 45019 60929 3 0x90 nanoslp syz-executor 65744 522816 45019 60929 3 0x4000090 ttyout syz-executor 65744 320602 45019 60929 3 0x4000090 fsleep syz-executor 43651 137165 1 0 3 0x82 nanoslp getty 54037 59330 93401 0 3 0x82 nanoslp syz-executor 37134 297796 93401 0 3 0x82 nanoslp syz-executor 43144 235352 93401 0 3 0x2 biowait syz-executor 4643 468336 93401 0 3 0x82 nanoslp syz-executor 82068 288460 93401 0 3 0x82 wait syz-executor 94097 395816 93401 0 3 0x82 nanoslp syz-executor 45019 237095 93401 0 3 0x82 nanoslp syz-executor 87868 395391 93401 0 3 0x82 nanoslp syz-executor 93401 77429 74392 0 3 0x82 kqread syz-executor 74392 451637 23128 0 3 0x10008a sigsusp ksh 23128 149747 7920 0 3 0x98 kqread sshd-session 7920 471428 16953 0 3 0x92 kqread sshd-session 16953 88915 1 0 3 0x88 kqread sshd 2856 461233 68083 74 3 0x1100092 bpf pflogd 68083 293176 1 0 3 0x80 sbwait pflogd 29915 200021 11960 73 3 0x1100090 kqread syslogd 11960 390784 1 0 3 0x100082 sbwait syslogd 35035 110716 1 0 3 0x100080 kqread resolvd 54246 324742 87864 77 3 0x100092 kqread dhcpleased 28255 128622 87864 77 3 0x100092 kqread dhcpleased 87864 435091 1 0 3 0x80 kqread dhcpleased 93561 47614 0 0 3 0x14200 bored smr 59000 445903 0 0 3 0x14200 pgzero zerothread 636 510746 0 0 3 0x14200 aiodoned aiodoned 16453 50465 0 0 3 0x14200 syncer update 37375 343297 0 0 3 0x14200 cleaner cleaner 2237 382303 0 0 3 0x14200 reaper reaper 79823 315677 0 0 3 0x14200 pgdaemon pagedaemon 85734 241079 0 0 3 0x14200 bored viomb 44570 358570 0 0 3 0x40014200 acpi0 acpi0 19258 214704 0 0 3 0x40014200 idle1 5854 205115 0 0 3 0x14200 bored softnet1 6827 125815 0 0 3 0x14200 bored softnet0 17333 130510 0 0 3 0x14200 bored systqmp 79107 76436 0 0 3 0x14200 bored systq 31762 477075 0 0 3 0x14200 tmoslp softclockmp 97880 388411 0 0 3 0x40014200 tmoslp softclock 44921 319821 0 0 3 0x40014200 idle0 1 225191 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83a2d1a0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 uvm_pageactivate+0x15a sys/uvm/uvm_page.c:1270 #3 uvm_fault_upper+0x526 sys/uvm/uvm_fault.c:-1 #4 uvm_fault+0x198 sys/uvm/uvm_fault.c:635 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 15040 (syz-executor) thread 0xffff80003c3b94e0 (6412) exclusive rwlock amaplk r = 0 (0xfffff6806d7463c8) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 uvm_fault_check+0x8a9 sys/uvm/uvm_fault.c:834 #3 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #4 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #5 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #6 recall_trap+0x8 shared rwlock vmmaplk r = 0 (0xfffff6800f9df128) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_read+0x3e8 sys/kern/kern_rwlock.c:413 #2 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1880 #3 uvm_fault_check+0x4f sys/uvm/uvm_fault.c:693 #4 uvm_fault+0x106 sys/uvm/uvm_fault.c:627 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83a2d1a0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 mtx_enter+0x4b4 sys/kern/kern_lock.c:487 #2 uvm_pageactivate+0x15a sys/uvm/uvm_page.c:1270 #3 uvm_fault_upper+0x526 sys/uvm/uvm_fault.c:-1 #4 uvm_fault+0x198 sys/uvm/uvm_fault.c:635 #5 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:192 #6 usertrap+0x430 sys/arch/amd64/amd64/trap.c:640 #7 recall_trap+0x8 Process 39830 (syz-executor) thread 0xffff80003c3b8a80 (118104) exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83a2ff00) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 syscall+0xaf4 mi_syscall sys/sys/syscall_mi.h:175 [inline] #1 syscall+0xaf4 sys/arch/amd64/amd64/trap.c:783 #2 Xsyscall+0x128 Process 43144 (syz-executor) thread 0xffff8000fffef4d8 (235352) exclusive rrwlock inode r = 0 (0xfffff6806c61d690) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vget+0x2a2 sys/kern/vfs_subr.c:686 #6 ufs_ihashget+0x185 sys/ufs/ufs/ufs_ihash.c:98 #7 ffs_vget+0x8c sys/ufs/ffs/ffs_vfsops.c:1203 #8 ufs_lookup+0x1a36 sys/ufs/ufs/ufs_lookup.c:478 #9 VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 #10 vfs_lookup+0x963 sys/kern/vfs_lookup.c:580 #11 namei+0x7c5 sys/kern/vfs_lookup.c:250 #12 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1806 #13 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #13 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #14 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffff6806c8afea0) #0 witness_lock+0x5f1 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5f1 sys/kern/subr_witness.c:1160 #1 rw_do_enter_write+0x419 sys/kern/kern_rwlock.c:320 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:621 #3 VOP_LOCK+0xbd sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:576 #5 vfs_lookup+0x12b sys/kern/vfs_lookup.c:431 #6 namei+0x7c5 sys/kern/vfs_lookup.c:250 #7 dounlinkat+0xc1 sys/kern/vfs_syscalls.c:1806 #8 syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] #8 syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 #9 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 11094 12170K 12241K 166960K 12445 0 pcb 18 12K 12K 166960K 70 0 rtable 190 7K 8K 166960K 489 0 pf 33 17K 25K 166960K 143 0 ifaddr 34 5K 7K 166960K 69 0 ifgroup 47 2K 2K 166960K 100 0 sysctl 3 1K 9K 166960K 8 0 counters 66 36K 37K 166960K 116 0 ioctlops 0 0K 4K 166960K 1580 0 iov 0 0K 16K 166960K 19 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1295 81K 82K 166960K 1606 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 9K 166960K 8 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 1K 166960K 18 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 17 61K 97K 166960K 444 0 sigio 0 0K 0K 166960K 3 0 proc 72 115K 180K 166960K 654 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 35 0 in_multi 74 5K 7K 166960K 129 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 0K 0K 166960K 8 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 253 1129K 1129K 166960K 253 0 exec 0 0K 1K 166960K 447 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 228 159K 173K 166960K 5855 0 UVM aobj 9 2K 2K 166960K 9 0 pinsyscall 42 84K 110K 166960K 1686 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 7 0 NDP 10 0K 2K 166960K 47 0 temp 47 9120K 9183K 166960K 15665 0 kqueue 15 24K 32K 166960K 71 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 53 0 49 1 0 1 1 0 8 0 rtentry 176 137 0 58 5 0 5 5 0 8 0 unpcb 144 260 0 240 6 5 1 6 0 8 0 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpcb 736 117 0 110 7 0 7 7 0 8 6 arp 136 22 0 8 1 0 1 1 0 8 0 ipq 40 2 0 0 1 0 1 1 0 8 0 ipqe 40 2 0 0 1 0 1 1 0 8 0 inpcb 328 324 0 312 8 1 7 7 0 8 5 nd6 152 32 0 13 1 0 1 1 0 8 0 kcovpl 48 10 0 2 1 0 1 1 0 8 0 ppxss 1192 17 0 17 2 1 1 1 0 8 1 pppxif 1576 1 0 1 1 0 1 1 0 8 1 pfstscr 40 4 0 2 1 0 1 1 0 8 0 pffrag 232 1 0 0 1 0 1 1 0 482 0 pffrnode 88 1 0 0 1 0 1 1 0 8 0 pffrent 40 1 0 0 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 3 0 2 1 0 1 1 0 8 0 pfanchor 1288 13 0 11 1 0 1 1 0 8 0 pftag 88 2 0 1 1 0 1 1 0 8 0 pfstitem 24 30 0 2 1 0 1 1 0 8 0 pfstkey 128 32 0 4 1 0 1 1 0 8 0 pfstate 448 31 0 3 4 0 4 4 0 8 0 pfrule 1360 38 0 31 2 0 2 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 566 0 225 29 5 24 29 0 8 1 art_table 40 568 0 225 5 0 5 5 0 8 1 art_node 32 137 0 66 1 0 1 1 0 8 0 sysvmsgpl 40 2 0 1 1 0 1 1 0 8 0 semapl 72 12 0 2 1 0 1 1 0 8 0 shmpl 112 6 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2075 0 603 93 0 93 93 0 8 0 ffsino 296 2075 0 603 114 0 114 114 0 8 0 nchpl 144 2684 0 978 64 0 64 64 0 8 0 rtmask 32 7 0 7 2 1 1 1 0 8 1 vnodes 216 2328 0 0 130 0 130 130 0 8 0 namei 1024 8946 0 8946 1 0 1 1 0 8 1 percpumem 16 73 0 25 1 0 1 1 0 8 0 kstatmem 264 57 0 34 2 0 2 2 0 8 0 scsiplug 72 2 0 2 1 0 1 1 0 8 1 scxspl 216 9494 0 9493 4 3 1 3 1 8 0 plimitpl 152 100 0 82 1 0 1 1 0 8 0 sigapl 424 787 0 720 9 1 8 8 0 8 0 knotepl 120 623 0 0 19 0 19 19 0 8 0 kqueuepl 224 172 0 161 6 4 2 5 0 8 1 pipepl 344 221 0 194 3 0 3 3 0 8 0 fdescpl 528 751 0 720 3 0 3 3 0 8 0 filepl 160 3778 0 3551 18 4 14 16 0 8 3 lockfpl 104 141 0 139 1 0 1 1 0 8 0 lockfspl 48 68 0 66 1 0 1 1 0 8 0 sessionpl 144 39 0 30 1 0 1 1 0 8 0 pgrppl 48 53 0 36 1 0 1 1 0 8 0 ucredpl 104 564 0 548 1 0 1 1 0 8 0 zombiepl 144 721 0 720 1 0 1 1 0 8 0 processpl 1232 787 0 720 7 1 6 6 0 8 0 procpl 664 1247 0 1171 7 0 7 7 0 8 0 sockpl 752 643 0 607 23 13 10 17 0 8 6 mcl64k 65536 11 0 0 2 0 2 2 0 8 0 mcl16k 16384 9 0 0 2 0 2 2 0 8 0 mcl12k 12288 2 0 0 1 0 1 1 0 8 0 mcl9k128 9344 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 6 0 0 1 0 1 1 0 8 0 mcl4k 4096 125 0 0 16 0 16 16 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 232 0 0 14 0 14 14 0 8 0 bufpl 272 3294 0 109 213 0 213 213 0 8 0 anonpl 32 7952 0 0 64 0 64 64 0 246 0 amapchunkpl 152 17685 0 17222 28 1 27 27 0 158 7 amappl16 200 2465 0 2436 25 13 12 15 0 8 7 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 470 0 468 1 0 1 1 0 8 0 amappl13 176 134 0 122 1 0 1 1 0 8 0 amappl12 168 1017 0 988 2 0 2 2 0 8 0 amappl11 160 4 0 4 1 1 0 1 0 8 0 amappl10 152 64 0 49 1 0 1 1 0 8 0 amappl9 144 278 0 278 1 1 0 1 0 8 0 amappl8 136 124 0 121 1 0 1 1 0 8 0 amappl7 128 166 0 152 1 0 1 1 0 8 0 amappl6 120 175 0 173 1 0 1 1 0 8 0 amappl5 112 101 0 89 1 0 1 1 0 8 0 amappl4 104 306 0 287 1 0 1 1 0 8 0 amappl3 96 3514 0 3406 4 0 4 4 0 8 0 amappl2 88 591 0 529 2 0 2 2 0 8 0 amappl1 80 11909 0 11306 16 2 14 15 0 8 1 amappl 88 5024 0 4868 5 0 5 5 0 92 0 uvmvnodes 80 107 0 0 3 0 3 3 0 8 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 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 8 0 0 1 0 1 1 0 8 0 uaddrrnd 24 751 0 720 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 751 0 720 1 0 1 1 0 8 0 vmmpekpl 168 8072 0 8029 3 0 3 3 0 8 0 vmmpepl 168 56577 0 54669 104 8 96 97 0 357 8 vmsppl 488 750 0 720 6 1 5 5 0 8 0 rwobjpl 80 18635 0 17586 31 4 27 27 0 8 2 pdppl 4096 1509 0 1440 109 38 71 87 0 8 2 pvpl 32 17120 0 0 139 0 139 139 0 265 0 pmappl 256 750 0 720 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 509 0 46 14 0 14 14 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: 0x735a7f481b80, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff80002999dff0) 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:682 acpitimer_delay(1) at acpitimer_delay+0x194 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x194 sys/dev/acpi/acpitimer.c:125 comcnputc(800,3e) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(3e) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(3e) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff8345e150) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83520401) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff800032fb2ef0,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800032fb2ef0) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff800032fb30a0, count: 0 ddb{1}> trace x86_ipi_db(ffff80002999dff0) 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:682 acpitimer_delay(1) at acpitimer_delay+0x194 acpitimer_read sys/dev/acpi/acpitimer.c:142 [inline] acpitimer_delay(1) at acpitimer_delay+0x194 sys/dev/acpi/acpitimer.c:125 comcnputc(800,3e) at comcnputc+0x29b sys/dev/ic/com.c:1274 cnputc(3e) at cnputc+0x67 sys/dev/cons.c:218 db_putchar(3e) at db_putchar+0x36d sys/ddb/db_output.c:155 kprintf() at kprintf+0x29c5 sys/kern/subr_prf.c:-1 db_printf(ffffffff8345e150) at db_printf+0x9b sys/kern/subr_prf.c:-1 fault(ffffffff83520401) at fault+0xa7 sys/arch/amd64/amd64/trap.c:161 kpageflttrap(ffff800032fb2ef0,98) at kpageflttrap+0x37d sys/arch/amd64/amd64/trap.c:296 kerntrap(ffff800032fb2ef0) at kerntrap+0x19d sys/arch/amd64/amd64/trap.c:528 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b dovutimens(ffff80003c3b8a80,fffff6806a9643c0,ffff800032fb30b0) at dovutimens+0x368 sys/kern/vfs_syscalls.c:2690 sys_futimens(ffff80003c3b8a80,ffff800032fb3200,ffff800032fb3150) at sys_futimens+0xb3 sys/kern/vfs_syscalls.c:2766 syscall(ffff800032fb3200) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff800032fb3200) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x7549851adb0, count: -18