*cpu1: uvm_fault(0xffffffff836190a8, 0xffff800026792004, 0, 1) -> d ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7591f01c7860, count: -1 ddb{0}> show registers rdi 0 rsi 0 rbp 0xffff80002a06a3b0 rbx 0 rdx 0 rcx 0xffff8000ffffd960 rax 0x32 r8 0xffff80002a06a2e0 r9 0xffff80002a06a1e8 r10 0xa0d00a2b0842940b r11 0x8b8e07fe83bc0289 r12 0 r13 0 r14 0xffff8000ffffd960 r15 0 rip 0xffffffff8231e3ee savectx+0xae cs 0x8 rflags 0x46 rsp 0xffff80002a06a330 ss 0x10 savectx+0xae: movl $0,%gs:0x680 ddb{0}> show proc PROC (syslogd) tid=73083 pid=61776 tcnt=1 stat=onproc flags process=1100010 proc=0 runpri=17, usrpri=50, slppri=17, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffffd6d8,0xffff8000ffffcf50 process=0xffff8000ffff9fc8 user=0xffff80002a065000, vmspace=0xfffffd806ecd31c0 estcpu=0, cpticks=1, pctcpu=6.79, user=6, sys=2038, intr=184 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 81757 370887 82163 0 3 0x80 fsleep syz-executor 81757 202116 82163 0 7 0x4000000 syz-executor 3217 53310 72741 0 2 0x100000 sh 75930 7170 23271 0 3 0x80 fsleep syz-executor 75930 120109 23271 0 2 0x4000000 syz-executor 18404 194847 94563 0 2 0 syz-executor 18404 324441 94563 0 3 0x4000080 fsleep syz-executor 18404 28147 94563 0 3 0x4000080 fsleep syz-executor 18404 285781 94563 0 3 0x4000080 fsleep syz-executor 17259 363891 2223 0 3 0x80 fsleep syz-executor 17259 476427 2223 0 2 0x4000000 syz-executor 29319 189541 9526 0 3 0x80 fsleep syz-executor 29319 72294 9526 0 3 0x4000080 rest syz-executor 72741 73514 65767 0 3 0x10008a sigsusp sh 86662 214133 32018 0 2 0 syz-executor 86662 263793 32018 0 3 0x4000080 fsleep syz-executor 12321 288573 67446 0 3 0x80 fsleep syz-executor 12321 234174 67446 0 3 0x4000080 sbwait syz-executor 67446 290424 40371 0 3 0x82 nanoslp syz-executor 65767 501620 40371 0 3 0x82 wait syz-executor 94563 276242 40371 0 3 0x82 nanoslp syz-executor 32018 260704 40371 0 3 0x82 nanoslp syz-executor 23271 207337 40371 0 3 0x82 nanoslp syz-executor 82163 134967 40371 0 3 0x82 nanoslp syz-executor 2223 298404 40371 0 3 0x82 nanoslp syz-executor 9526 258317 40371 0 3 0x82 nanoslp syz-executor 79963 229766 1 0 3 0x80 fsleep syz-executor 79963 159026 1 0 3 0x4000080 sbwait syz-executor 79963 283947 1 0 3 0x4000000 sbufrcv syz-executor 76395 426392 1 0 3 0x100083 ttyin getty 72355 380882 0 0 3 0x14280 nfsidl nfsio 17983 202950 0 0 3 0x14280 nfsidl nfsio 46887 187337 0 0 3 0x14280 nfsidl nfsio 74550 30962 0 0 3 0x14280 nfsidl nfsio 52104 445261 0 0 3 0x14280 nfsidl nfsio 56922 87674 0 0 3 0x14280 nfsidl nfsio 67984 391169 0 0 3 0x14280 nfsidl nfsio 57769 417618 0 0 3 0x14280 nfsidl nfsio 40798 249928 0 0 3 0x14280 nfsidl nfsio 90063 443640 0 0 3 0x14280 nfsidl nfsio 86275 337162 0 0 3 0x14280 nfsidl nfsio 90736 509337 0 0 3 0x14280 nfsidl nfsio 64874 163419 0 0 3 0x14280 nfsidl nfsio 55184 411716 0 0 3 0x14280 nfsidl nfsio 89729 365977 0 0 3 0x14280 nfsidl nfsio 63844 155940 0 0 3 0x14280 nfsidl nfsio 24672 156784 0 0 3 0x14280 nfsidl nfsio 10146 133600 0 0 3 0x14280 nfsidl nfsio 67844 59241 0 0 3 0x14280 nfsidl nfsio 23390 304370 0 0 3 0x14280 nfsidl nfsio 2040 388795 0 0 3 0x14200 bored sosplice 40371 269515 94838 0 3 0x82 kqread syz-executor 94838 377762 12472 0 3 0x10008a sigsusp ksh 12472 874 45882 0 3 0x98 kqread sshd-session 45882 430704 14022 0 3 0x92 kqread sshd-session 14022 180 1 0 3 0x88 kqread sshd 81927 199982 74992 74 3 0x1100092 bpf pflogd 74992 113391 1 0 3 0x80 sbwait pflogd *61776 73083 90174 73 7 0x1100010 syslogd 90174 146932 1 0 3 0x100082 sbwait syslogd 449 375931 1 0 3 0x100080 kqread resolvd 37269 147707 48479 77 3 0x100092 kqread dhcpleased 16211 401821 48479 77 3 0x100092 kqread dhcpleased 48479 485193 1 0 3 0x80 kqread dhcpleased 61921 447565 0 0 3 0x14200 bored smr 88072 77753 0 0 2 0x14200 zerothread 97404 203009 0 0 3 0x14200 aiodoned aiodoned 52415 115402 0 0 3 0x14200 syncer update 1528 186091 0 0 3 0x14200 cleaner cleaner 3798 181841 0 0 3 0x14200 reaper reaper 39335 350413 0 0 3 0x14200 pgdaemon pagedaemon 65534 55726 0 0 3 0x14200 bored viomb 59922 398300 0 0 3 0x40014200 acpi0 acpi0 22895 400294 0 0 3 0x40014200 idle1 98527 323729 0 0 3 0x14200 bored softnet3 225 450431 0 0 3 0x14200 bored softnet2 38898 419311 0 0 3 0x14200 bored softnet1 80949 33669 0 0 3 0x14200 bored softnet0 29641 5381 0 0 3 0x14200 bored systqmp 64318 328014 0 0 3 0x14200 bored systq 5764 179367 0 0 3 0x14200 tmoslp softclockmp 39488 234470 0 0 3 0x40014200 tmoslp softclock 14168 38189 0 0 3 0x40014200 idle0 1 398045 0 0 3 0x80082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 0: exclusive mutex &newfdp->fd_fd.fd_fplock r = 0 (0xfffffd806ed75280) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 mtx_enter_try+0x178 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 fd_getfile+0x6a sys/kern/kern_descrip.c:236 #4 sys_kevent+0x4e #5 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #5 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #6 Xsyscall+0x128 Process 81757 (syz-executor) thread 0xffff8000ffff4028 (202116) exclusive rrwlock inode r = 0 (0xfffffd80608dae68) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 vn_open+0x1f4 sys/kern/vfs_vnops.c:107 #8 doopenat+0x31d sys/kern/vfs_syscalls.c:1123 #9 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #9 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #10 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff8362f4e0) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 syscall+0xad6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #1 syscall+0xad6 sys/arch/amd64/amd64/trap.c:577 #2 Xsyscall+0x128 Process 75930 (syz-executor) thread 0xffff8000ffff7460 (120109) exclusive rrwlock inode r = 0 (0xfffffd80608daa28) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 ufs_ihashins+0x4f sys/ufs/ufs/ufs_ihash.c:169 #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_makeinode+0xcb sys/ufs/ufs/ufs_vnops.c:1733 #8 ufs_mknod+0x5b sys/ufs/ufs/ufs_vnops.c:167 #9 VOP_MKNOD+0x102 sys/kern/vfs_vops.c:121 #10 domknodat+0x47e sys/kern/vfs_syscalls.c:1624 #11 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd80608da3c8) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 rrw_enter+0xbe sys/kern/kern_rwlock.c:464 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:524 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:564 #5 vfs_lookup+0x109 sys/kern/vfs_lookup.c:418 #6 namei+0x7aa sys/kern/vfs_lookup.c:250 #7 domknodat+0xb4 sys/kern/vfs_syscalls.c:1576 #8 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #8 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #9 Xsyscall+0x128 Process 79963 (syz-executor) thread 0xffff8000ffff51e0 (159026) exclusive rwlock sbufrcv r = 0 (0xffff8000012e5080) #0 witness_lock+0x5b8 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5b8 sys/kern/subr_witness.c:1151 #1 rw_enter+0x41b sys/kern/kern_rwlock.c:309 #2 sblock+0xb7 sys/kern/uipc_socket2.c:549 #3 soreceive+0x295 sys/kern/uipc_socket.c:947 #4 recvit+0x40a sys/kern/uipc_syscalls.c:1082 #5 sys_recvmmsg+0x3d3 sys/kern/uipc_syscalls.c:973 #6 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10225 10113K 10567K 166960K 12417 0 pcb 18 14K 16K 166960K 301 0 rtable 202 6K 7K 166960K 1561 0 pf 39 18K 26K 166960K 170 0 ifaddr 41 7K 8K 166960K 213 0 ifgroup 55 2K 2K 166960K 239 0 sysctl 3 0K 0K 166960K 3 0 counters 64 36K 36K 166960K 158 0 ioctlops 0 0K 4K 166960K 1634 0 iov 1 4K 25K 166960K 54 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1445 91K 91K 166960K 2587 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 0K 166960K 32 0 dirhash 12 2K 2K 166960K 33 0 ACPI 1690 195K 286K 166960K 12418 0 file desc 20 73K 97K 166960K 1503 0 sigio 0 0K 0K 166960K 30 0 proc 72 91K 140K 166960K 1666 0 subproc 117 7K 7K 166960K 598 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 2 0K 0K 166960K 128 0 in_multi 89 6K 7K 166960K 533 0 ether_multi 1 0K 0K 166960K 2 0 mrt 1 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 1007 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 257 81K 93K 166960K 13316 0 UVM aobj 27 2K 2K 166960K 30 0 pinsyscall 45 90K 111K 166960K 3592 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 123 0 NDP 18 0K 2K 166960K 151 0 temp 65 6820K 7079K 166960K 44596 0 kqueue 13 20K 26K 166960K 162 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 120 163 0 160 1 0 1 1 0 8 0 rtentry 112 546 0 455 4 1 3 4 0 8 0 unpcb 144 648 0 625 6 5 1 3 0 8 0 syncache 336 11 0 11 6 6 0 1 0 8 0 tcpqe 32 1 0 1 1 1 0 1 0 8 0 tcpcb 808 404 0 398 17 16 1 8 0 8 0 arp 120 98 0 80 1 0 1 1 0 8 0 ipq 40 1 0 1 1 1 0 1 0 8 0 ipqe 40 3 0 3 1 1 0 1 0 8 0 inpcb 336 1371 0 1359 23 21 2 7 0 8 1 nd6 136 140 0 119 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 1 0 1 0 8 0 kcovpl 48 46 0 37 1 0 1 1 0 8 0 ppxss 1168 4 0 4 4 4 0 1 0 8 0 pfstscr 40 4 0 4 2 2 0 1 0 8 0 pffrag 232 5 0 2 2 1 1 1 0 482 0 pffrnode 88 5 0 2 2 1 1 1 0 8 0 pffrent 40 51 0 48 2 1 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 4 0 3 2 1 1 1 0 8 0 pfanchor 1288 2 0 2 2 2 0 1 0 8 0 pftag 88 6 0 0 1 0 1 1 0 8 0 pfstitem 24 117 0 93 1 0 1 1 0 8 0 pfstkey 128 121 0 97 2 0 2 2 0 8 0 pfstate 376 120 0 96 5 1 4 5 0 8 0 pfrule 1344 33 0 24 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 2232 0 1826 33 7 26 31 0 8 0 art_table 32 2233 0 1826 5 1 4 5 0 8 0 art_node 16 543 0 461 1 0 1 1 0 8 0 sysvmsgpl 40 10 0 7 1 0 1 1 0 8 0 semapl 112 29 0 19 1 0 1 1 0 8 0 shmpl 112 27 0 3 1 0 1 1 0 8 0 dirhash 1024 31 0 14 3 0 3 3 0 8 0 dino2pl 256 3038 0 1458 99 0 99 99 0 8 0 ffsino 272 3038 0 1458 106 0 106 106 0 8 0 nchpl 144 4357 0 2607 65 0 65 65 0 8 0 uvmvnodes 80 4123 0 0 85 0 85 85 0 8 0 vnodes 216 4123 0 0 230 0 230 230 0 8 0 namei 1024 18691 0 18689 6 5 1 2 0 8 0 percpumem 16 93 0 47 1 0 1 1 0 8 0 pfiaddrpl 120 1 0 1 1 1 0 1 0 8 0 kstatmem 264 118 0 94 2 0 2 2 0 8 0 acpiwqpl 32 1 0 1 1 0 1 1 1 8 1 scsiplug 72 4 0 4 3 3 0 1 0 8 0 scxspl 216 31620 0 31620 11 10 1 8 1 8 1 plimitpl 152 352 0 333 1 0 1 1 0 8 0 sigapl 424 1755 0 1682 10 1 9 9 0 8 0 futexpl 64 15983 0 15973 3 2 1 1 0 8 0 knotepl 120 557 0 0 17 0 17 17 0 8 0 kqueuepl 216 278 0 267 2 1 1 2 0 8 0 pipepl 320 392 0 364 8 5 3 8 0 8 0 fdescpl 496 1715 0 1681 6 1 5 6 0 8 0 filepl 152 9012 0 8738 31 20 11 16 0 8 0 lockfpl 104 538 0 536 1 0 1 1 0 8 0 lockfspl 48 177 0 175 1 0 1 1 0 8 0 sessionpl 144 68 0 59 1 0 1 1 0 8 0 pgrppl 48 123 0 105 1 0 1 1 0 8 0 ucredpl 104 1341 0 1328 1 0 1 1 0 8 0 zombiepl 144 1709 0 1709 1 0 1 1 0 8 1 processpl 1160 1755 0 1682 6 0 6 6 0 8 0 procpl 648 3072 0 2988 10 2 8 8 0 8 0 srpgc 96 10 0 10 4 4 0 1 0 8 0 sosppl 168 7 0 7 5 5 0 1 0 8 0 sockpl 664 2228 0 2190 24 20 4 9 0 8 0 mcl64k 65536 4 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 8 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 226 0 0 29 0 29 29 0 8 0 mtagpl 96 12 0 0 1 0 1 1 0 8 0 mbufpl 256 346 0 0 20 0 20 20 0 8 0 bufpl 280 7342 0 1168 442 0 442 442 0 8 0 anonpl 24 267483 0 263643 124 94 30 71 0 185 0 amapchunkpl 152 42054 0 41489 63 40 23 41 0 158 1 amappl16 200 4999 0 4975 30 28 2 27 0 8 0 amappl15 192 5 0 5 1 1 0 1 0 8 0 amappl14 184 202 0 190 1 0 1 1 0 8 0 amappl13 176 10 0 10 2 2 0 1 0 8 0 amappl12 168 2996 0 2961 4 2 2 3 0 8 0 amappl11 160 55 0 41 1 0 1 1 0 8 0 amappl10 152 31 0 30 1 0 1 1 0 8 0 amappl9 144 134 0 134 2 2 0 1 0 8 0 amappl8 136 28 0 25 1 0 1 1 0 8 0 amappl7 128 196 0 184 1 0 1 1 0 8 0 amappl6 120 561 0 558 1 0 1 1 0 8 0 amappl5 112 307 0 295 1 0 1 1 0 8 0 amappl4 104 460 0 441 1 0 1 1 0 8 0 amappl3 96 8402 0 8277 5 1 4 4 0 8 0 amappl2 88 1281 0 1211 2 0 2 2 0 8 0 amappl1 80 15720 0 15146 17 3 14 15 0 8 0 amappl 88 12532 0 12338 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 128 253 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 29 0 3 1 0 1 1 0 8 0 uaddrrnd 24 1715 0 1681 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 1715 0 1681 1 0 1 1 0 8 0 vmmpekpl 168 15084 0 15032 3 0 3 3 0 8 0 vmmpepl 168 111863 0 109911 113 25 88 106 0 357 0 vmsppl 440 1714 0 1681 6 2 4 5 0 8 0 rwobjpl 56 37563 0 32436 78 4 74 74 0 8 0 pdppl 4096 3437 0 3362 149 74 75 87 0 8 0 pvpl 32 28661 0 0 231 0 231 231 0 265 0 pmappl 248 1714 0 1681 3 0 3 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 503 0 135 11 0 11 11 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace savectx() at savectx+0xae end of kernel end trace frame: 0x7591f01c7860, count: -1 ddb{0}> machine ddbcpu 1 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(800,2d) 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(ffffffff83092a1a) at db_printf+0x9b fault(ffffffff8303c395) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002a0d7fd0,ffff800026792004) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002a0d7fd0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b end trace frame: 0xffff80002a0d8190, count: 0 ddb{1}> trace x86_ipi_db(ffff800029b7bff0) at x86_ipi_db+0x27 sys/arch/amd64/amd64/db_interface.c:393 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(800,2d) 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(ffffffff83092a1a) at db_printf+0x9b fault(ffffffff8303c395) at fault+0xa7 sys/arch/amd64/amd64/trap.c:157 kpageflttrap(ffff80002a0d7fd0,ffff800026792004) at kpageflttrap+0x385 sys/arch/amd64/amd64/trap.c:290 kerntrap(ffff80002a0d7fd0) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b ufs_lookup() at ufs_lookup+0x5e1 sys/ufs/ufs/ufs_lookup.c:279 VOP_LOOKUP(fffffd806463a548,ffff80002a0d8548,ffff80002a0d8578) at VOP_LOOKUP+0x6e sys/kern/vfs_vops.c:85 vfs_lookup(ffff80002a0d8518) at vfs_lookup+0x8fa sys/kern/vfs_lookup.c:566 namei(ffff80002a0d8518) at namei+0x7aa sys/kern/vfs_lookup.c:250 vn_open(ffff80002a0d8518,216,0) at vn_open+0x1f4 sys/kern/vfs_vnops.c:107 doopenat(ffff8000ffff4028,ffffff9c,200000c0,615,0,ffff80002a0d86c0) at doopenat+0x31d sys/kern/vfs_syscalls.c:1123 syscall(ffff80002a0d8770) at syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80002a0d8770) at syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x31d5243e840, count: -22