uvm_fault(fffffd8076331e28,200c0000,0,1) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80003724fa00,200c0000) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003724fa00) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff80003724fe50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003724fe50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9abf89cba0, count: 1 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb{1}> ddb{1}> set $lines = 0 ddb{1}> set $maxwidth = 0 ddb{1}> show panic *cpu1: mutex 0xfffffd8076331f40 not held in mtx_leave ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8076331f40) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8076331e58,fffffd8076331f40,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8076331e28,ffffffff830d8373,6f3) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvmfault_lookup(ffff80003724f860,1) at uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 uvm_fault_check(ffff80003724f860,ffff80003724f898,ffff80003724f8c0) at uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] uvm_fault_check(ffff80003724f860,ffff80003724f898,ffff80003724f8c0) at uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 uvm_fault(fffffd8076331e28,200c0000,0,1) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80003724fa00,200c0000) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003724fa00) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff80003724fe50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003724fe50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9abf89cba0, count: -14 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80003724f480 rbx 0xffff800029b7cdbf rdx 0 rcx 0xffff8000371ce538 rax 0xffff800029b7bff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x94a39b75d103097a r11 0x9e227e2f2c6126fa r12 0xffff800029b7cbc0 r13 0 r14 0 r15 0x1 rip 0xffffffff816a99e5 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003724f470 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=138614 pid=88343 tcnt=4 stat=sleep flags process=10 proc=4000020 runpri=32, usrpri=55, slppri=4, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000309956f8,0xffff800030994a60 process=0xffff800037283ae8 user=0xffff80003724a000, vmspace=0xfffffd8076331e28 estcpu=5, cpticks=7, pctcpu=0.0, user=0, sys=7, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 43851 55368 38584 32767 2 0x10 syz-executor 43851 402058 38584 32767 3 0x4000090 fsleep syz-executor 43851 50997 38584 32767 3 0x4000090 fsleep syz-executor 57472 54279 26619 32767 2 0x10 syz-executor 57472 163098 26619 32767 3 0x4000090 fsleep syz-executor 61183 425604 53436 32767 2 0x10 syz-executor 61183 253018 53436 32767 3 0x4000090 fsleep syz-executor 40239 515173 65255 32767 2 0x10 syz-executor 40239 37544 65255 32767 3 0x4000090 fsleep syz-executor 40239 337600 65255 32767 3 0x4000090 fsleep syz-executor 88343 255858 66460 32767 2 0x10 syz-executor *88343 138614 66460 32767 3 0x4000030 syz-executor 88343 308865 66460 32767 2 0x4000010 syz-executor 88343 330342 66460 32767 7 0x4000010 syz-executor 88749 411771 30229 32767 2 0x10 syz-executor 88749 369035 30229 32767 3 0x4000090 fsleep syz-executor 88749 71998 30229 32767 3 0x4000090 fsleep syz-executor 59938 56362 34758 32767 2 0x10 syz-executor 65255 262255 19665 32767 3 0x90 nanoslp syz-executor 19665 121921 6459 0 3 0x82 wait syz-executor 59554 512774 46402 32767 2 0x10 syz-executor 34758 450003 16902 32767 2 0x10 syz-executor 26619 284599 48077 32767 3 0x90 nanoslp syz-executor 38584 49564 8488 32767 2 0x490 syz-executor 8488 90906 6459 0 3 0x82 wait syz-executor 53436 58706 61847 32767 2 0x490 syz-executor 16902 521077 6459 0 3 0x82 wait syz-executor 48077 397089 6459 0 3 0x82 wait syz-executor 46402 361408 6459 0 3 0x82 wait syz-executor 66460 17766 93976 32767 3 0x90 nanoslp syz-executor 30229 387947 73695 32767 3 0x90 nanoslp syz-executor 61847 8860 6459 0 3 0x82 wait syz-executor 73695 7970 6459 0 3 0x82 wait syz-executor 93976 510894 6459 0 3 0x82 wait syz-executor 58301 491944 0 0 3 0x14200 bored sosplice 6459 251129 30 0 2 0x82 syz-executor 30 200656 49096 0 3 0x10008a sigsusp ksh 49096 159297 42134 0 3 0x98 kqread sshd-session 42134 258484 96074 0 3 0x92 kqread sshd-session 89249 326615 1 0 3 0x100083 ttyin getty 96074 477469 1 0 3 0x88 kqread sshd 97399 505555 69863 73 2 0x1100010 syslogd 69863 84705 1 0 3 0x100082 sbwait syslogd 60109 63192 1 0 3 0x100080 kqread resolvd 2660 504215 8641 77 3 0x100092 kqread dhcpleased 76603 400579 8641 77 3 0x100092 kqread dhcpleased 8641 191692 1 0 3 0x80 kqread dhcpleased 2930 234962 0 0 3 0x14200 bored smr 91071 477633 0 0 2 0x14200 zerothread 20781 447604 0 0 3 0x14200 aiodoned aiodoned 10186 380978 0 0 3 0x14200 syncer update 35604 154546 0 0 3 0x14200 cleaner cleaner 61054 275310 0 0 3 0x14200 reaper reaper 17115 171329 0 0 3 0x14200 pgdaemon pagedaemon 56751 73323 0 0 3 0x14200 bored viomb 15515 280834 0 0 3 0x40014200 acpi0 acpi0 78987 12792 0 0 3 0x40014200 idle1 7641 267787 0 0 3 0x14200 bored softnet3 81688 266573 0 0 3 0x14200 bored softnet2 3317 164895 0 0 3 0x14200 bored softnet1 57685 247640 0 0 3 0x14200 bored softnet0 60616 183736 0 0 3 0x14200 bored systqmp 4894 227086 0 0 3 0x14200 bored systq 62993 372923 0 0 3 0x14200 tmoslp softclockmp 64866 195082 0 0 3 0x40014200 tmoslp softclock 78340 163703 0 0 3 0x40014200 idle0 1 490807 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.pageqlock r = 0 (0xffffffff83512f78) #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 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 uvm_map_clean+0x602 sys/uvm/uvm_map.c:4528 #4 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #4 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 CPU 1: exclusive mutex &map->flags_lock r = 0 (0xfffffd8076331f80) #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 #2 mtx_enter+0x60 sys/kern/kern_lock.c:239 #3 vm_map_lock_ln+0x6b sys/uvm/uvm_map.c:5244 #4 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 #5 uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] #5 uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 #6 uvm_fault+0x112 sys/uvm/uvm_fault.c:600 #7 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #8 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #9 alltraps_kern_meltdown+0x7b #10 _copyin+0x57 #11 syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] #11 syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 #12 Xsyscall+0x128 Process 88343 (syz-executor) thread 0xffff80003239ccc8 (330342) exclusive rwlock amaplk r = 0 (0xfffffd806c1257c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 uvm_map_clean+0x411 sys/uvm/uvm_map.c:4498 #2 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #2 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #3 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff835a2200) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 __mp_acquire_count+0x58 #2 mi_switch+0x4b7 sys/kern/sched_bsd.c:441 #3 sleep_finish+0x21e sys/kern/kern_synch.c:416 #4 rw_enter+0x348 sys/kern/kern_rwlock.c:285 #5 vm_map_lock_ln+0x142 sys/uvm/uvm_map.c:5257 #6 uvm_map_clean+0x11b sys/uvm/uvm_map.c:4450 #7 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #7 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 Process 59554 (syz-executor) thread 0xffff80003239d1d8 (512774) exclusive rrwlock inode r = 0 (0xfffffd806c1354e8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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_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:3099 #10 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #10 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #11 Xsyscall+0x128 exclusive rrwlock inode r = 0 (0xfffffd806c1efe70) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 domkdirat+0x8b sys/kern/vfs_syscalls.c:3084 #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 97399 (syslogd) thread 0xffff8000ffffd960 (505555) exclusive rrwlock inode r = 0 (0xfffffd806e24cb40) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #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 sys_fsync+0x152 sys/kern/vfs_syscalls.c:2926 #6 syscall+0xaf8 mi_syscall sys/sys/syscall_mi.h:179 [inline] #6 syscall+0xaf8 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10183 11047K 11059K 166960K 11285 0 pcb 17 12K 12K 166960K 17 0 rtable 234 6K 7K 166960K 588 0 pf 31 16K 16K 166960K 48 0 ifaddr 42 7K 7K 166960K 78 0 ifgroup 50 2K 2K 166960K 83 0 counters 64 36K 36K 166960K 80 0 ioctlops 0 0K 2K 166960K 39 0 iov 0 0K 4K 166960K 6 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1456 91K 91K 166960K 1507 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 4 0 VM map 2 1K 1K 166960K 2 0 sem 3 0K 0K 166960K 6 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1690 195K 286K 166960K 12468 0 file desc 25 93K 157K 166960K 344 0 sigio 0 0K 0K 166960K 4 0 proc 58 79K 176K 166960K 709 0 subproc 104 6K 12K 166960K 221 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 18 0 in_multi 99 7K 7K 166960K 195 0 ether_multi 1 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 67 307K 307K 166960K 67 0 exec 0 0K 1K 166960K 441 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 258 74K 130K 166960K 3874 0 UVM aobj 4 2K 2K 166960K 4 0 pinsyscall 46 92K 126K 166960K 1540 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 1 0K 0K 166960K 5 0 NDP 27 2K 2K 166960K 51 0 temp 39 6815K 6879K 166960K 4973 0 kqueue 13 20K 24K 166960K 29 0 SYN cache 2 16K 16K 166960K 2 0 ddb{1}> 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 53 0 50 1 0 1 1 0 8 0 rtentry 112 200 0 90 4 0 4 4 0 8 0 unpcb 144 229 0 210 2 1 1 2 0 8 0 syncache 336 5 0 5 2 1 1 1 0 8 1 tcpqe 32 3 0 3 2 1 1 1 0 8 1 tcpcb 808 165 0 92 13 5 8 8 0 8 0 arp 120 34 0 16 1 0 1 1 0 8 0 inpcb 336 288 0 210 12 5 7 7 0 8 0 nd6 136 49 0 25 1 0 1 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 814 0 359 35 6 29 29 0 8 0 art_table 32 815 0 359 4 0 4 4 0 8 0 art_node 16 199 0 99 1 0 1 1 0 8 0 semapl 112 4 0 3 1 0 1 1 0 8 0 shmpl 112 1 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 1685 0 163 96 0 96 96 0 8 0 ffsino 272 1685 0 163 102 0 102 102 0 8 0 nchpl 144 1966 0 279 63 0 63 63 0 8 0 uvmvnodes 80 1915 0 0 40 0 40 40 0 8 0 vnodes 216 1915 0 0 107 0 107 107 0 8 0 namei 1024 6483 0 6482 3 2 1 2 0 8 0 percpumem 16 54 0 8 1 0 1 1 0 8 0 kstatmem 264 38 0 16 2 0 2 2 0 8 0 scxspl 216 8072 0 8072 9 6 3 8 1 8 3 plimitpl 152 64 0 39 3 1 2 2 0 8 0 sigapl 424 598 0 542 9 0 9 9 0 8 0 futexpl 64 1067 0 1059 2 1 1 1 0 8 0 knotepl 120 67 0 0 3 0 3 3 0 8 0 kqueuepl 216 102 0 92 5 4 1 5 0 8 0 pipepl 320 168 0 141 7 3 4 6 0 8 0 fdescpl 496 579 0 542 8 1 7 7 0 8 0 filepl 152 2380 0 2066 17 3 14 17 0 8 1 lockfpl 104 17 0 14 1 0 1 1 0 8 0 lockfspl 48 11 0 8 1 0 1 1 0 8 0 sessionpl 144 30 0 14 1 0 1 1 0 8 0 pgrppl 48 49 0 25 1 0 1 1 0 8 0 ucredpl 104 186 0 167 1 0 1 1 0 8 0 zombiepl 144 542 0 542 1 0 1 1 0 8 1 processpl 1160 598 0 542 6 0 6 6 0 8 0 procpl 648 725 0 658 7 0 7 7 0 8 0 sockpl 664 572 0 472 14 5 9 9 0 8 0 mcl8k 8192 4 0 0 1 0 1 1 0 8 0 mcl4k 4096 135 0 0 17 0 17 17 0 8 0 mcl2k 2048 19 0 0 3 0 3 3 0 8 0 mtagpl 96 3 0 0 1 0 1 1 0 8 0 mbufpl 256 193 0 0 13 0 13 13 0 8 0 bufpl 280 4789 0 95 336 0 336 336 0 8 0 anonpl 24 153279 0 149780 72 0 72 72 0 185 42 amapchunkpl 152 12330 0 11754 31 0 31 31 0 158 8 amappl16 200 3793 0 3768 14 6 8 14 0 8 6 amappl15 192 9 0 9 1 1 0 1 0 8 0 amappl14 184 132 0 122 1 0 1 1 0 8 0 amappl13 176 6 0 6 1 1 0 1 0 8 0 amappl12 168 1336 0 1299 4 1 3 3 0 8 1 amappl11 160 77 0 67 1 0 1 1 0 8 0 amappl10 152 13 0 13 1 1 0 1 0 8 0 amappl9 144 129 0 129 1 1 0 1 0 8 0 amappl8 136 16 0 15 1 0 1 1 0 8 0 amappl7 128 154 0 144 1 0 1 1 0 8 0 amappl6 120 271 0 269 1 0 1 1 0 8 0 amappl5 112 161 0 152 1 0 1 1 0 8 0 amappl4 104 298 0 283 1 0 1 1 0 8 0 amappl3 96 2415 0 2284 4 0 4 4 0 8 0 amappl2 88 757 0 698 2 0 2 2 0 8 0 amappl1 80 8438 0 7896 15 1 14 14 0 8 0 amappl 88 3481 0 3279 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 3 0 0 1 0 1 1 0 8 0 uaddrrnd 24 579 0 542 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 579 0 542 1 0 1 1 0 8 0 vmmpekpl 168 6114 0 6058 4 0 4 4 0 8 0 vmmpepl 168 43927 0 41934 99 1 98 98 0 357 9 vmsppl 448 578 0 542 6 0 6 6 0 8 0 rwobjpl 56 18281 0 15515 42 0 42 42 0 8 1 pdppl 4096 1165 0 1084 141 46 95 113 0 8 14 pvpl 32 30114 0 0 243 0 243 243 0 265 0 pmappl 248 578 0 542 5 1 4 4 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 451 0 67 12 0 12 12 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff834adff0) 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 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x68 savectx() at savectx+0xae end of kernel end trace frame: 0xb9a6d1cf100, count: 10 ddb{0}> trace x86_ipi_db(ffffffff834adff0) 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 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x68 savectx() at savectx+0xae end of kernel end trace frame: 0xb9a6d1cf100, count: -5 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x25: addq $0x8,%rsp db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8076331f40) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8076331e58,fffffd8076331f40,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8076331e28,ffffffff830d8373,6f3) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvmfault_lookup(ffff80003724f860,1) at uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 uvm_fault_check(ffff80003724f860,ffff80003724f898,ffff80003724f8c0) at uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] uvm_fault_check(ffff80003724f860,ffff80003724f898,ffff80003724f8c0) at uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 uvm_fault(fffffd8076331e28,200c0000,0,1) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80003724fa00,200c0000) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003724fa00) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff80003724fe50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003724fe50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9abf89cba0, count: 1 ddb{1}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff83078e14) at panic+0x1e5 sys/kern/subr_prf.c:198 mtx_leave(fffffd8076331f40) at mtx_leave+0x17c sys/kern/kern_lock.c:335 msleep(fffffd8076331e58,fffffd8076331f40,4,ffffffff832a21d0,0) at msleep+0x125 sys/kern/kern_synch.c:249 vm_map_lock_ln(fffffd8076331e28,ffffffff830d8373,6f3) at vm_map_lock_ln+0xd4 sys/uvm/uvm_map.c:5250 uvmfault_lookup(ffff80003724f860,1) at uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1779 uvm_fault_check(ffff80003724f860,ffff80003724f898,ffff80003724f8c0) at uvm_fault_check+0x83e uvmfault_amapcopy sys/uvm/uvm_fault.c:236 [inline] uvm_fault_check(ffff80003724f860,ffff80003724f898,ffff80003724f8c0) at uvm_fault_check+0x83e sys/uvm/uvm_fault.c:710 uvm_fault(fffffd8076331e28,200c0000,0,1) at uvm_fault+0x112 sys/uvm/uvm_fault.c:600 kpageflttrap(ffff80003724fa00,200c0000) at kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 kerntrap(ffff80003724fa00) at kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 alltraps_kern_meltdown() at alltraps_kern_meltdown+0x7b _copyin() at _copyin+0x57 syscall(ffff80003724fe50) at syscall+0xbb6 mi_syscall sys/sys/syscall_mi.h:179 [inline] syscall(ffff80003724fe50) at syscall+0xbb6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0xb9abf89cba0, count: -14