panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 6703 65078 0 0 0x4000000 1 syz-executor.1 171312 22720 0 0x14000 0x40000200 0K softclock db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82860106) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80626a02c8,20b10000,20b14000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 uvm_vslock_device(ffff80002716cd68,20b10100,10000,3,ffff80002e4f5778) at uvm_vslock_device+0xe9 sys/uvm/uvm_glue.c:170 physio(ffffffff82057cf0,d00,8000,ffffffff82058370,ffff80002e4f5a58) at physio+0x22c sys/kern/kern_physio.c:140 spec_read(ffff80002e4f58b0) at spec_read+0xfa sys/kern/spec_vnops.c:215 VOP_READ(fffffd805a6362a8,ffff80002e4f5a58,0,fffffd807f7d74e0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_read(fffffd806e4a7db8,ffff80002e4f5a58,0) at vn_read+0x12a sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002716cd68,3,ffff80002e4f5a58,0,ffff80002e4f5b40) at dofilereadv+0x1a2 sys/kern/sys_generic.c:247 sys_read(ffff80002716cd68,ffff80002e4f5af0,ffff80002e4f5b40) at sys_read+0x87 sys/kern/sys_generic.c:167 syscall(ffff80002e4f5bc0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4f5bc0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a52197a030, count: 2 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: uvm_fault_unwire_locked: address not in map ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82860106) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80626a02c8,20b10000,20b14000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 uvm_vslock_device(ffff80002716cd68,20b10100,10000,3,ffff80002e4f5778) at uvm_vslock_device+0xe9 sys/uvm/uvm_glue.c:170 physio(ffffffff82057cf0,d00,8000,ffffffff82058370,ffff80002e4f5a58) at physio+0x22c sys/kern/kern_physio.c:140 spec_read(ffff80002e4f58b0) at spec_read+0xfa sys/kern/spec_vnops.c:215 VOP_READ(fffffd805a6362a8,ffff80002e4f5a58,0,fffffd807f7d74e0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_read(fffffd806e4a7db8,ffff80002e4f5a58,0) at vn_read+0x12a sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002716cd68,3,ffff80002e4f5a58,0,ffff80002e4f5b40) at dofilereadv+0x1a2 sys/kern/sys_generic.c:247 sys_read(ffff80002716cd68,ffff80002e4f5af0,ffff80002e4f5b40) at sys_read+0x87 sys/kern/sys_generic.c:167 syscall(ffff80002e4f5bc0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4f5bc0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a52197a030, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002e4f54d0 rbx 0xffff800020d49ba7 rdx 0 rcx 0xffff80002716cd68 rax 0xffff800020d48ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x4b47439a802c78e6 r11 0x41d134621ad4173e r12 0xffff800020d499a8 r13 0 r14 0 r15 0x1 rip 0xffffffff81f68cdc db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002e4f54c0 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor.1) tid=6703 pid=65078 tcnt=5 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002716c570,0xffff80002716dac0 process=0xffff8000212c0ca8 user=0xffff80002e4f0000, vmspace=0xfffffd80626a02c8 estcpu=36, cpticks=7, pctcpu=0.0, user=0, sys=0, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 65078 199620 88810 0 2 0 syz-executor.1 65078 155142 88810 0 2 0x4000000 syz-executor.1 *65078 6703 88810 0 7 0x4000000 syz-executor.1 65078 88633 88810 0 2 0x4000000 syz-executor.1 65078 67746 88810 0 2 0x4000000 syz-executor.1 25032 486795 48771 0 3 0x80 nanoslp syz-executor.7 25032 485317 48771 0 3 0x4000080 netcon2 syz-executor.7 25032 15863 48771 0 3 0x4000080 fsleep syz-executor.7 25032 60643 48771 0 3 0x4000080 fsleep syz-executor.7 15531 329960 16279 0 2 0x2 syz-executor.0 89870 465357 1 0 3 0x100083 ttyin getty 48771 453223 16279 0 3 0x82 nanoslp syz-executor.7 4951 353526 16279 0 3 0x82 piperd syz-executor.2 53534 89536 0 0 3 0x14200 acct acct 98806 376889 16279 0 3 0x82 piperd syz-executor.3 8029 372454 16279 0 3 0x82 piperd syz-executor.6 6229 16136 0 0 3 0x14280 nfsidl nfsio 3580 368180 0 0 3 0x14280 nfsidl nfsio 7015 49757 0 0 3 0x14280 nfsidl nfsio 11200 55807 0 0 3 0x14280 nfsidl nfsio 11763 462544 0 0 3 0x14280 nfsidl nfsio 18838 507434 0 0 3 0x14280 nfsidl nfsio 96956 422379 0 0 3 0x14280 nfsidl nfsio 18436 480045 0 0 3 0x14280 nfsidl nfsio 15178 217822 0 0 3 0x14280 nfsidl nfsio 34596 264591 0 0 3 0x14280 nfsidl nfsio 12418 42744 0 0 3 0x14280 nfsidl nfsio 62834 221195 0 0 3 0x14280 nfsidl nfsio 22945 378045 0 0 3 0x14280 nfsidl nfsio 91240 33898 0 0 3 0x14280 nfsidl nfsio 81370 371062 0 0 3 0x14280 nfsidl nfsio 95702 242180 0 0 3 0x14280 nfsidl nfsio 62319 439053 0 0 3 0x14280 nfsidl nfsio 6563 208499 0 0 3 0x14280 nfsidl nfsio 30335 489949 0 0 3 0x14280 nfsidl nfsio 71736 476578 0 0 3 0x14280 nfsidl nfsio 37318 437788 0 0 3 0x14200 bored sosplice 67274 469638 16279 0 3 0x82 piperd syz-executor.4 98013 51333 16279 0 3 0x82 piperd syz-executor.5 88810 97224 16279 0 3 0x82 nanoslp syz-executor.1 16279 306376 82409 0 3 0x2000082 wait syz-fuzzer 16279 219603 82409 0 2 0x6000082 syz-fuzzer 16279 470649 82409 0 3 0x6000082 wait syz-fuzzer 16279 109514 82409 0 3 0x6000082 wait syz-fuzzer 16279 159559 82409 0 3 0x6000082 thrsleep syz-fuzzer 16279 45992 82409 0 3 0x6000082 wait syz-fuzzer 16279 43847 82409 0 3 0x6000082 wait syz-fuzzer 16279 372925 82409 0 3 0x6000082 kqread syz-fuzzer 16279 363458 82409 0 3 0x6000082 thrsleep syz-fuzzer 16279 420374 82409 0 3 0x6000082 wait syz-fuzzer 16279 256142 82409 0 3 0x6000082 thrsleep syz-fuzzer 16279 464214 82409 0 3 0x6000082 thrsleep syz-fuzzer 16279 296430 82409 0 2 0x6000082 syz-fuzzer 16279 321976 82409 0 3 0x6000082 thrsleep syz-fuzzer 16279 275087 82409 0 3 0x6000082 wait syz-fuzzer 16279 451356 82409 0 3 0x6000082 wait syz-fuzzer 82409 429857 1465 0 3 0x10008a sigsusp ksh 1465 503544 87766 0 3 0x9a kqread sshd 87766 39449 1 0 3 0x88 kqread sshd 50370 371486 80108 74 3 0x1100092 bpf pflogd 80108 328444 1 0 3 0x80 netio pflogd 92388 182208 30977 73 3 0x1100090 kqread syslogd 30977 195911 1 0 3 0x100082 netio syslogd 92040 97589 1 0 3 0x100080 kqread resolvd 6115 439775 24114 77 3 0x100092 kqread dhcpleased 61037 260718 24114 77 3 0x100092 kqread dhcpleased 24114 438797 1 0 3 0x80 kqread dhcpleased 86756 511936 0 0 3 0x14200 bored smr 20482 264733 0 0 2 0x14200 zerothread 22016 380205 0 0 3 0x14200 aiodoned aiodoned 69008 481122 0 0 3 0x14200 syncer update 87165 166254 0 0 3 0x14200 cleaner cleaner 10562 129285 0 0 3 0x14200 reaper reaper 98631 25725 0 0 3 0x14200 pgdaemon pagedaemon 28673 175918 0 0 3 0x14200 bored viomb 74121 144107 0 0 3 0x40014200 acpi0 acpi0 67515 394397 0 0 3 0x40014200 idle1 45714 1040 0 0 3 0x14200 bored softnet3 96546 269228 0 0 3 0x14200 bored softnet2 62343 336206 0 0 3 0x14200 bored softnet1 874 132773 0 0 3 0x14200 bored softnet0 60633 97223 0 0 3 0x14200 bored systqmp 59908 233262 0 0 3 0x14200 bored systq 83382 448480 0 0 3 0x14200 tmoslp softclockmp 22720 171312 0 0 7 0x40014200 softclock 35573 289450 0 0 3 0x40014200 idle0 1 67610 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{1}> show all locks CPU 0: exclusive mutex &uvm.fpageqlock r = 0 (0xffffffff82d24bd0) #0 witness_lock+0x447 #1 mtx_enter_try+0x104 #2 mtx_enter+0x4f sys/kern/kern_lock.c:266 #3 uvm_pmr_freepageq+0xcc sys/uvm/uvm_pmemrange.c:1333 #4 amap_wipeout+0x20f sys/uvm/uvm_amap.c:523 #5 uvm_unmap_detach+0x7d sys/uvm/uvm_map.c:1366 #6 sys_munmap+0x22e sys/uvm/uvm_mmap.c:539 #7 syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] #7 syscall+0x606 sys/arch/amd64/amd64/trap.c:623 #8 Xsyscall+0x128 Process 65078 (syz-executor.1) thread 0xffff80002716c570 (155142) uvm_fault(0xfffffd80626a02c8, 0x400000003, 0, 1) -> e kernel: page fault trap, code=0 Faulted in DDB; continuing... ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10231 6509K 7723K 78643K 26227 0 pcb 13 14K 16K 78643K 976 0 rtable 241 7K 7K 78643K 919 0 pf 35 10K 10K 78643K 157 0 ifaddr 46 16K 17K 78643K 132 0 ifgroup 60 2K 2K 78643K 251 0 sysctl 4 1K 1K 78643K 8 0 counters 62 36K 36K 78643K 164 0 ioctlops 0 0K 4K 78643K 2176 0 iov 0 0K 24K 78643K 731 0 mount 1 1K 1K 78643K 1 0 log 0 0K 0K 78643K 4 0 vnodes 1669 104K 105K 78643K 10361 0 UFS quota 1 32K 32K 78643K 1 0 UFS mount 5 36K 36K 78643K 5 0 shm 3 5K 9K 78643K 120 0 VM map 2 1K 1K 78643K 2 0 sem 12 0K 0K 78643K 669 0 dirhash 12 2K 2K 78643K 45 0 ACPI 1697 195K 286K 78643K 12548 0 file desc 12 41K 77K 78643K 10056 0 sigio 0 0K 0K 78643K 159 0 proc 73 91K 115K 78643K 1352 0 subproc 104 6K 6K 78643K 221 0 NFS srvsock 1 0K 0K 78643K 1 0 NFS daemon 1 16K 16K 78643K 1 0 ip_moptions 0 0K 0K 78643K 660 0 in_multi 99 7K 7K 78643K 263 0 ether_multi 1 0K 0K 78643K 1 0 mrt 1 0K 0K 78643K 1 0 ISOFS mount 1 32K 32K 78643K 1 0 MSDOSFS mount 1 16K 16K 78643K 1 0 ttys 229 1023K 1023K 78643K 229 0 exec 0 0K 1K 78643K 1690 0 pfkey data 0 0K 0K 78643K 67 0 tdb 3 0K 0K 78643K 3 0 pagedep 1 8K 8K 78643K 1 0 inodedep 1 32K 32K 78643K 1 0 newblk 1 0K 0K 78643K 1 0 VM swap 8 62K 64K 78643K 10 0 UVM amap 454 388K 389K 78643K 101218 0 UVM aobj 131 4K 4K 78643K 131 0 memdesc 1 4K 4K 78643K 1 0 crypto data 1 1K 1K 78643K 1 0 ip6_options 0 0K 0K 78643K 484 0 NDP 13 0K 1K 78643K 98 0 temp 74 5924K 6052K 78643K 135288 0 kqueue 13 20K 29K 78643K 760 0 SYN cache 2 8K 16K 78643K 3 0 ddb{1}> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle plcache 128 22 0 0 1 0 1 1 0 8 0 rtpcb 120 421 0 418 6 5 1 3 0 8 0 rtentry 112 224 0 112 4 0 4 4 0 8 0 unpcb 144 6527 0 6512 85 84 1 7 0 8 0 syncache 304 98 0 98 22 22 0 1 0 8 0 tcpqe 32 355 0 355 16 16 0 1 0 8 0 tcpcb 808 2475 0 2455 84 79 5 10 0 8 3 arp 120 38 0 19 1 0 1 1 0 8 0 inpcb 368 6375 0 6352 142 134 8 14 0 8 5 nd6 136 57 0 32 1 0 1 1 0 8 0 pkpcb 40 15 0 15 5 5 0 1 0 8 0 kcovpl 48 17 0 9 1 0 1 1 0 8 0 ppxss 1256 11 0 11 5 5 0 1 0 8 0 pffrag 232 34 0 31 3 2 1 1 0 482 0 pffrnode 88 34 0 31 3 2 1 1 0 8 0 pffrent 40 202 0 199 4 3 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 24 309 0 279 1 0 1 1 0 8 0 pfstkey 128 309 0 279 2 0 2 2 0 8 0 pfstate 376 309 0 279 15 10 5 8 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 885 0 421 34 5 29 30 0 8 0 art_table 32 886 0 421 4 0 4 4 0 8 0 art_node 16 217 0 115 1 0 1 1 0 8 0 sysvmsgpl 40 41 0 2 1 0 1 1 0 8 0 semapl 112 667 0 657 1 0 1 1 0 8 0 shmpl 112 128 0 0 4 0 4 4 0 8 0 dirhash 1024 39 0 22 3 0 3 3 0 8 0 dino2pl 256 14751 0 13213 97 0 97 97 0 8 0 ffsino 272 14751 0 13213 103 0 103 103 0 8 0 nchpl 144 28140 0 27586 63 40 23 63 0 8 0 uvmvnodes 80 6179 0 0 127 0 127 127 0 8 0 vnodes 216 6179 0 0 344 0 344 344 0 8 0 namei 1024 106402 0 106402 9 8 1 2 0 8 1 percpumem 16 95 0 51 1 0 1 1 0 8 0 vcpupl 2048 211 0 0 27 0 27 27 0 8 0 vmpool 696 249 0 38 20 0 20 20 0 8 0 kstatmem 264 128 0 102 2 0 2 2 0 8 0 scxspl 216 93239 0 93239 30 29 1 8 1 8 1 plimitpl 152 1500 0 1484 1 0 1 1 0 8 0 sigapl 424 10398 0 10333 11 3 8 9 0 8 0 futexpl 64 88195 0 88193 2 1 1 1 0 8 0 knotepl 120 759 0 0 15 4 11 11 0 8 0 kqueuepl 216 1705 0 1696 35 34 1 8 0 8 0 pipepl 320 1929 0 1901 44 41 3 8 0 8 0 fdescpl 496 10351 0 10326 7 3 4 5 0 8 0 filepl 152 70080 0 69837 148 135 13 20 0 8 1 lockfpl 104 2994 0 2992 5 4 1 2 0 8 0 lockfspl 48 1062 0 1060 1 0 1 1 0 8 0 sessionpl 144 37 0 20 1 0 1 1 0 8 0 pgrppl 48 148 0 131 1 0 1 1 0 8 0 ucredpl 104 7949 0 7936 1 0 1 1 0 8 0 zombiepl 144 10333 0 10333 4 3 1 1 0 8 1 processpl 1072 10398 0 10333 5 0 5 5 0 8 0 procpl 680 28662 0 28575 12 3 9 10 0 8 0 sosppl 168 93 0 88 10 9 1 1 0 8 0 sockpl 488 13380 0 13339 324 311 13 28 0 8 6 mcl64k 65536 33 0 0 4 1 3 3 0 8 0 mcl16k 16384 27 0 0 4 1 3 3 0 8 0 mcl12k 12288 17 0 0 2 0 2 2 0 8 0 mcl9k 9216 13 0 0 1 0 1 1 0 8 0 mcl8k 8192 25 0 0 3 1 2 3 0 8 0 mcl4k 4096 26 0 0 3 0 3 3 0 8 0 mcl2k2 2112 9 0 0 1 0 1 1 0 8 0 mcl2k 2048 364 0 0 32 10 22 32 0 8 0 mtagpl 96 1604 0 0 40 1 39 40 0 8 0 mbufpl 256 2302 0 0 140 0 140 140 0 8 0 bufpl 288 22593 0 16270 452 0 452 452 0 8 0 anonpl 24 1044779 0 1030040 168 59 109 115 0 186 0 amapchunkpl 152 318408 0 317612 107 69 38 47 0 158 1 amappl16 200 20882 0 20346 124 88 36 39 0 8 6 amappl15 192 11 0 11 1 1 0 1 0 8 0 amappl14 184 198 0 184 2 1 1 2 0 8 0 amappl13 176 14 0 13 2 1 1 1 0 8 0 amappl12 168 11177 0 11147 2 0 2 2 0 8 0 amappl11 160 54 0 40 1 0 1 1 0 8 0 amappl10 152 41 0 30 1 0 1 1 0 8 0 amappl9 144 287 0 287 28 27 1 1 0 8 1 amappl8 136 517 0 398 5 0 5 5 0 8 0 amappl7 128 252 0 225 2 0 2 2 0 8 0 amappl6 120 555 0 536 1 0 1 1 0 8 0 amappl5 112 290 0 279 1 0 1 1 0 8 0 amappl4 104 703 0 665 5 3 2 2 0 8 0 amappl3 96 62575 0 62495 5 2 3 4 0 8 0 amappl2 88 11211 0 11138 3 1 2 3 0 8 0 amappl1 80 45243 0 44685 23 10 13 23 0 8 0 amappl 88 100348 0 100100 8 1 7 8 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 72 130 0 0 3 0 3 3 0 8 0 uaddrrnd 24 10600 0 10364 3 1 2 2 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 10600 0 10364 3 1 2 2 0 8 0 vmmpekpl 168 76079 0 75973 5 0 5 5 0 8 0 vmmpepl 168 621953 0 619186 342 192 150 150 0 357 18 vmsppl 464 10599 0 10364 32 1 31 31 0 8 0 rwobjpl 56 156620 0 148596 126 10 116 116 0 8 1 pdppl 4096 21207 0 20939 783 503 280 280 0 8 12 pvpl 32 2934698 0 2914433 511 318 193 348 0 265 1 pmappl 248 10599 0 10364 17 1 16 16 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 1941 0 752 36 1 35 35 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x1e: addq $0x8,%rsp x86_ipi_db(ffffffff82c44ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 sys/dev/kcov.c:158 softclock_thread(ffff800021158d48) at softclock_thread+0x145 sys/kern/kern_timeout.c:805 end trace frame: 0x0, count: 10 ddb{0}> trace x86_ipi_db(ffffffff82c44ff0) at x86_ipi_db+0x1e sys/arch/amd64/amd64/db_interface.c:393 x86_ipi_handler() at x86_ipi_handler+0xb7 sys/arch/amd64/amd64/ipi.c:106 Xresume_lapic_ipi() at Xresume_lapic_ipi+0x27 __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 kd_curproc sys/dev/kcov.c:589 [inline] __sanitizer_cov_trace_pc() at __sanitizer_cov_trace_pc+0x29 sys/dev/kcov.c:158 softclock_thread(ffff800021158d48) at softclock_thread+0x145 sys/kern/kern_timeout.c:805 end trace frame: 0x0, count: -5 ddb{0}> machine ddbcpu 1 Stopped at db_enter+0x1c: addq $0x8,%rsp db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82860106) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80626a02c8,20b10000,20b14000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 uvm_vslock_device(ffff80002716cd68,20b10100,10000,3,ffff80002e4f5778) at uvm_vslock_device+0xe9 sys/uvm/uvm_glue.c:170 physio(ffffffff82057cf0,d00,8000,ffffffff82058370,ffff80002e4f5a58) at physio+0x22c sys/kern/kern_physio.c:140 spec_read(ffff80002e4f58b0) at spec_read+0xfa sys/kern/spec_vnops.c:215 VOP_READ(fffffd805a6362a8,ffff80002e4f5a58,0,fffffd807f7d74e0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_read(fffffd806e4a7db8,ffff80002e4f5a58,0) at vn_read+0x12a sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002716cd68,3,ffff80002e4f5a58,0,ffff80002e4f5b40) at dofilereadv+0x1a2 sys/kern/sys_generic.c:247 sys_read(ffff80002716cd68,ffff80002e4f5af0,ffff80002e4f5b40) at sys_read+0x87 sys/kern/sys_generic.c:167 syscall(ffff80002e4f5bc0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4f5bc0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a52197a030, count: 2 ddb{1}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82860106) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd80626a02c8,20b10000,20b14000) at uvm_fault_unwire_locked+0x321 sys/uvm/uvm_fault.c:1663 uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 uvm_fault_unwire sys/uvm/uvm_fault.c:1623 [inline] uvm_fault_wire(fffffd80626a02c8,20b10000,20b21000,3) at uvm_fault_wire+0xd7 sys/uvm/uvm_fault.c:1605 uvm_vslock_device(ffff80002716cd68,20b10100,10000,3,ffff80002e4f5778) at uvm_vslock_device+0xe9 sys/uvm/uvm_glue.c:170 physio(ffffffff82057cf0,d00,8000,ffffffff82058370,ffff80002e4f5a58) at physio+0x22c sys/kern/kern_physio.c:140 spec_read(ffff80002e4f58b0) at spec_read+0xfa sys/kern/spec_vnops.c:215 VOP_READ(fffffd805a6362a8,ffff80002e4f5a58,0,fffffd807f7d74e0) at VOP_READ+0xc3 sys/kern/vfs_vops.c:227 vn_read(fffffd806e4a7db8,ffff80002e4f5a58,0) at vn_read+0x12a sys/kern/vfs_vnops.c:369 dofilereadv(ffff80002716cd68,3,ffff80002e4f5a58,0,ffff80002e4f5b40) at dofilereadv+0x1a2 sys/kern/sys_generic.c:247 sys_read(ffff80002716cd68,ffff80002e4f5af0,ffff80002e4f5b40) at sys_read+0x87 sys/kern/sys_generic.c:167 syscall(ffff80002e4f5bc0) at syscall+0x606 mi_syscall sys/sys/syscall_mi.h:110 [inline] syscall(ffff80002e4f5bc0) at syscall+0x606 sys/arch/amd64/amd64/trap.c:623 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3a52197a030, count: -13