panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND 507346 20967 0 0 0 0 syz-executor *352655 80352 0 0 0x4000000 1K syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343aafe) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806e3ab1f0,200000020000,200000021000) at uvm_fault_unwire_locked+0x4de uvm_fault_wire(fffffd806e3ab1f0,200000020000,200000031000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806e3ab1f0,200000020000,200000031000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff8000ffff19c0,200000020040,10000,3,ffff80002a2b88d0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff832d9600,d02,8000,ffffffff832d9e60,ffff80002a2b8b88) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80002a2b89f0) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806289f058,ffff80002a2b8b88,0,fffffd80097fb7b8) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd8068b71b80,ffff80002a2b8b88,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff19c0,3,ffff80002a2b8b88,1,ffff80002a2b8c40) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff8000ffff19c0,ffff80002a2b8cf0,ffff80002a2b8c40) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80002a2b8cf0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2b8cf0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3d41f4c8c80, 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+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8343aafe) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806e3ab1f0,200000020000,200000021000) at uvm_fault_unwire_locked+0x4de uvm_fault_wire(fffffd806e3ab1f0,200000020000,200000031000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1766 [inline] uvm_fault_wire(fffffd806e3ab1f0,200000020000,200000031000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1748 uvm_vslock_device(ffff8000ffff19c0,200000020040,10000,3,ffff80002a2b88d0) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff832d9600,d02,8000,ffffffff832d9e60,ffff80002a2b8b88) at physio+0x277 sys/kern/kern_physio.c:139 spec_read(ffff80002a2b89f0) at spec_read+0x155 sys/kern/spec_vnops.c:215 VOP_READ(fffffd806289f058,ffff80002a2b8b88,0,fffffd80097fb7b8) at VOP_READ+0x102 sys/kern/vfs_vops.c:227 vn_read(fffffd8068b71b80,ffff80002a2b8b88,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369 dofilereadv(ffff8000ffff19c0,3,ffff80002a2b8b88,1,ffff80002a2b8c40) at dofilereadv+0x230 sys/kern/sys_generic.c:252 sys_pread(ffff8000ffff19c0,ffff80002a2b8cf0,ffff80002a2b8c40) at sys_pread+0xae sys/kern/vfs_syscalls.c:3303 syscall(ffff80002a2b8cf0) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a2b8cf0) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x3d41f4c8c80, count: -13 ddb{1}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a2b8610 rbx 0xffff8000299dedd7 rdx 0 rcx 0xffff8000ffff19c0 rax 0xffff8000299ddff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x72f644d15e4aaf27 r11 0xd57d5cf7203e5345 r12 0xffff8000299debd8 r13 0 r14 0 r15 0x1 rip 0xffffffff81bd4c95 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80002a2b8600 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{1}> show proc PROC (syz-executor) tid=352655 pid=80352 tcnt=4 stat=onproc flags process=0 proc=4000000 runpri=36, usrpri=86, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff8000ffff2f70,0xffff8000ffffcf78 process=0xffff8000fffecea0 user=0xffff80002a2b3000, vmspace=0xfffffd806e3ab1f0 estcpu=36, cpticks=2, pctcpu=0.0, user=0, sys=2, intr=0 ddb{1}> ps PID TID PPID UID S FLAGS WAIT COMMAND 20967 507346 9793 0 7 0 syz-executor 80352 348231 61565 0 3 0x80 nanoslp syz-executor *80352 352655 61565 0 7 0x4000000 syz-executor 80352 95117 61565 0 3 0x4000080 fsleep syz-executor 80352 347397 61565 0 3 0x4000080 fsleep syz-executor 69168 345191 24306 0 2 0 syz-executor 69168 486144 24306 0 3 0x4000080 fsleep syz-executor 14224 112840 26383 0 3 0x80 nanoslp syz-executor 14224 365300 26383 0 3 0x4000080 pipewr syz-executor 14224 177449 26383 0 3 0x4000080 kqsel syz-executor 14224 26251 26383 0 3 0x4000080 fsleep syz-executor 74093 429550 20112 0 3 0x80 nanoslp syz-executor 74093 125070 20112 0 3 0x4000080 ttyin syz-executor 74093 4130 20112 0 3 0x4000080 fsleep syz-executor 74093 73794 20112 0 3 0x4000080 fsleep syz-executor 74093 340563 20112 0 3 0x4000080 fsleep syz-executor 18089 277660 53379 0 2 0x10000002 syz-executor 66467 59391 5357 0 3 0x80 nanoslp syz-executor 66467 217341 5357 0 3 0x4000080 sbwait syz-executor 66467 453627 5357 0 3 0x4000080 fsleep syz-executor 53359 278115 0 0 3 0x14200 acct acct 60800 195102 0 0 3 0x14200 bored sosplice 35168 198235 1 0 3 0x100083 ttyin getty 57987 238059 12949 0 3 0x100082 sbwait arp 12949 385949 8964 0 3 0x10008a sigsusp sh 5357 84690 53379 0 3 0x82 nanoslp syz-executor 8964 358802 53379 0 3 0x82 wait syz-executor 20112 428746 53379 0 3 0x82 nanoslp syz-executor 26383 455124 53379 0 3 0x82 nanoslp syz-executor 24306 361882 53379 0 3 0x82 nanoslp syz-executor 61565 290341 53379 0 3 0x82 nanoslp syz-executor 9793 275861 53379 0 3 0x82 nanoslp syz-executor 53379 74862 32857 0 2 0x2 syz-executor 32857 328456 3191 0 3 0x10008a sigsusp ksh 3191 503300 9141 0 3 0x98 kqread sshd-session 9141 34140 60253 0 3 0x92 kqread sshd-session 60253 423751 1 0 3 0x88 kqread sshd 30335 296875 14305 74 3 0x1100092 bpf pflogd 14305 152817 1 0 3 0x80 sbwait pflogd 50401 258839 79939 73 3 0x1100090 kqread syslogd 79939 223641 1 0 3 0x100082 sbwait syslogd 51299 57769 1 0 3 0x100080 kqread resolvd 48657 278967 19149 77 3 0x100092 kqread dhcpleased 70528 364474 19149 77 3 0x100092 kqread dhcpleased 19149 72020 1 0 3 0x80 kqread dhcpleased 58273 6872 0 0 3 0x14200 bored smr 68268 475044 0 0 2 0x14200 zerothread 15474 135374 0 0 3 0x14200 aiodoned aiodoned 17214 5385 0 0 3 0x14200 syncer update 13651 8549 0 0 3 0x14200 cleaner cleaner 97024 440675 0 0 3 0x14200 reaper reaper 68670 305298 0 0 3 0x14200 pgdaemon pagedaemon 6068 35127 0 0 3 0x14200 bored viomb 51136 393455 0 0 3 0x40014200 acpi0 acpi0 34529 198837 0 0 3 0x40014200 idle1 10273 406699 0 0 3 0x14200 bored softnet3 62565 522645 0 0 3 0x14200 bored softnet2 24148 208283 0 0 3 0x14200 bored softnet1 42779 410705 0 0 3 0x14200 bored softnet0 87429 277113 0 0 3 0x14200 bored systqmp 48687 403711 0 0 3 0x14200 bored systq 16679 71685 0 0 3 0x14200 tmoslp softclockmp 3177 154690 0 0 3 0x40014200 tmoslp softclock 58479 224537 0 0 3 0x40014200 idle0 1 96456 0 0 3 0x82 wait init 0 0 -1 0 3 0x10010200 scheduler swapper ddb{1}> show all locks Process 20967 (syz-executor) thread 0xffff8000ffff07d0 (507346) exclusive rwlock vmmaplk r = 0 (0xfffffd806b9ba898) #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+0x377 sys/kern/kern_rwlock.c:310 #2 vm_map_lock_ln+0x12e sys/uvm/uvm_map.c:5168 #3 uvmfault_lookup+0xe8 sys/uvm/uvm_fault.c:1918 #4 uvm_fault_check+0x8a5 uvmfault_amapcopy sys/uvm/uvm_fault.c:235 [inline] #4 uvm_fault_check+0x8a5 sys/uvm/uvm_fault.c:784 #5 uvm_fault+0x106 sys/uvm/uvm_fault.c:677 #6 upageflttrap+0xa9 sys/arch/amd64/amd64/trap.c:188 #7 usertrap+0x2d8 sys/arch/amd64/amd64/trap.c:436 #8 recall_trap+0x8 Process 80352 (syz-executor) thread 0xffff8000ffff19c0 (352655) shared rwlock vmmaplk r = 0 (0xfffffd806e3ab2f0) #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+0x36e sys/kern/kern_rwlock.c:397 #2 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1765 [inline] #2 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1748 #3 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #4 physio+0x277 sys/kern/kern_physio.c:139 #5 spec_read+0x155 sys/kern/spec_vnops.c:215 #6 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #7 vn_read+0x17b sys/kern/vfs_vnops.c:369 #8 dofilereadv+0x230 sys/kern/sys_generic.c:252 #9 sys_pread+0xae sys/kern/vfs_syscalls.c:3303 #10 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #10 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #11 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff839140c0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1160 #1 __mp_acquire_count+0x58 sys/kern/kern_lock.c:-1 #2 sleep_finish+0x2da sys/kern/kern_synch.c:366 #3 rw_do_enter_read+0x2ac sys/kern/kern_rwlock.c:379 #4 uvm_fault_wire+0x116 uvm_fault_unwire sys/uvm/uvm_fault.c:1765 [inline] #4 uvm_fault_wire+0x116 sys/uvm/uvm_fault.c:1748 #5 uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 #6 physio+0x277 sys/kern/kern_physio.c:139 #7 spec_read+0x155 sys/kern/spec_vnops.c:215 #8 VOP_READ+0x102 sys/kern/vfs_vops.c:227 #9 vn_read+0x17b sys/kern/vfs_vnops.c:369 #10 dofilereadv+0x230 sys/kern/sys_generic.c:252 #11 sys_pread+0xae sys/kern/vfs_syscalls.c:3303 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #13 Xsyscall+0x128 Process 74093 (syz-executor) thread 0xffff80003c41fc58 (125070) exclusive rrwlock inode r = 0 (0xfffffd80657f8760) #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+0x377 sys/kern/kern_rwlock.c:310 #2 rrw_enter+0xc6 sys/kern/kern_rwlock.c:605 #3 VOP_LOCK+0xa6 sys/kern/vfs_vops.c:527 #4 vn_lock+0xa4 sys/kern/vfs_vnops.c:570 #5 spec_open+0x305 sys/kern/spec_vnops.c:151 #6 VOP_OPEN+0x8b sys/kern/vfs_vops.c:138 #7 vn_open+0x708 sys/kern/vfs_vnops.c:177 #8 vndioctl+0xcb1 sys/dev/vnd.c:457 #9 VOP_IOCTL+0xac sys/kern/vfs_vops.c:264 #10 vn_ioctl+0xf8 sys/kern/vfs_vnops.c:531 #11 sys_ioctl+0x5c3 sys/kern/sys_generic.c:-1 #12 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #12 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:579 #13 Xsyscall+0x128 ddb{1}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10208 11154K 11482K 166960K 11678 0 pcb 17 13K 14K 166960K 100 0 rtable 217 7K 7K 166960K 394 0 pf 34 17K 19K 166960K 61 0 ifaddr 39 6K 7K 166960K 55 0 ifgroup 55 2K 2K 166960K 73 0 sysctl 3 1K 9K 166960K 9 0 counters 68 36K 37K 166960K 84 0 ioctlops 0 0K 4K 166960K 1512 0 iov 0 0K 17K 166960K 79 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1352 85K 85K 166960K 1606 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 7 0 VM map 2 1K 1K 166960K 2 0 sem 9 1K 1K 166960K 14 0 dirhash 12 2K 2K 166960K 18 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 18 65K 89K 166960K 415 0 sigio 0 0K 0K 166960K 8 0 proc 72 91K 128K 166960K 572 0 subproc 72 4K 4K 166960K 81 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 43 0 in_multi 79 5K 6K 166960K 115 0 ether_multi 1 0K 0K 166960K 2 0 mrt 0 0K 0K 166960K 2 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 73 334K 334K 166960K 73 0 exec 0 0K 1K 166960K 422 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 260 170K 174K 166960K 5505 0 UVM aobj 11 2K 2K 166960K 11 0 pinsyscall 44 88K 105K 166960K 1514 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 0 0K 0K 166960K 23 0 NDP 14 0K 1K 166960K 34 0 temp 44 8684K 8748K 166960K 12055 0 kqueue 14 22K 26K 166960K 71 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 26 0 0 1 0 1 1 0 8 0 rtpcb 120 49 0 43 1 0 1 1 0 8 0 rtentry 176 121 0 23 5 0 5 5 0 8 0 unpcb 144 315 0 296 6 1 5 6 0 8 4 syncache 336 4 0 4 1 1 0 1 0 8 0 tcpcb 736 121 0 116 4 0 4 4 0 8 3 arp 128 22 0 4 1 0 1 1 0 8 0 inpcb 328 391 0 380 5 1 4 4 0 8 2 nd6 144 24 0 6 1 0 1 1 0 8 0 pkpcb 40 1 0 1 1 0 1 1 0 8 1 kcovpl 48 9 0 1 1 0 1 1 0 8 0 ppxss 1192 5 0 5 2 1 1 1 0 8 1 pffrag 232 1 0 1 1 1 0 1 0 482 0 pffrnode 88 1 0 1 1 1 0 1 0 8 0 pffrent 40 2 0 2 1 1 0 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 31 0 0 1 0 1 1 0 8 0 pfstkey 128 31 0 0 1 0 1 1 0 8 0 pfstate 384 31 0 0 4 0 4 4 0 8 0 pfrule 1344 21 0 16 2 1 1 2 0 8 0 art_heap8 4096 2 0 0 2 0 2 2 0 8 0 art_heap4 256 470 0 94 26 1 25 26 0 8 1 art_table 32 472 0 94 4 0 4 4 0 8 0 art_node 16 120 0 32 1 0 1 1 0 8 0 sysvmsgpl 40 1 0 0 1 0 1 1 0 8 0 semupl 112 2 0 2 1 0 1 1 0 8 1 semapl 112 9 0 2 1 0 1 1 0 8 0 shmpl 112 8 0 0 1 0 1 1 0 8 0 dirhash 1024 21 0 4 3 0 3 3 0 8 0 dino2pl 256 2078 0 571 95 0 95 95 0 8 0 ffsino 288 2078 0 571 109 0 109 109 0 8 0 nchpl 144 2642 0 950 63 0 63 63 0 8 0 rtmask 32 1 0 1 1 1 0 1 0 8 0 uvmvnodes 80 2313 0 0 48 0 48 48 0 8 0 vnodes 216 2313 0 0 129 0 129 129 0 8 0 namei 1024 8239 0 8239 2 1 1 2 0 8 1 percpumem 16 57 0 8 1 0 1 1 0 8 0 kstatmem 264 38 0 12 2 0 2 2 0 8 0 scxspl 216 10779 0 10779 10 9 1 8 1 8 1 plimitpl 152 102 0 84 1 0 1 1 0 8 0 sigapl 424 715 0 662 7 0 7 7 0 8 0 knotepl 120 323 0 0 10 0 10 10 0 8 0 kqueuepl 224 130 0 119 3 0 3 3 0 8 2 pipepl 336 129 0 101 3 0 3 3 0 8 0 fdescpl 520 694 0 662 3 0 3 3 0 8 0 filepl 160 3365 0 3141 15 2 13 15 0 8 3 lockfpl 104 226 0 224 2 1 1 2 0 8 0 lockfspl 48 45 0 43 1 0 1 1 0 8 0 sessionpl 144 24 0 15 1 0 1 1 0 8 0 pgrppl 48 35 0 18 1 0 1 1 0 8 0 ucredpl 104 333 0 319 1 0 1 1 0 8 0 zombiepl 144 663 0 662 1 0 1 1 0 8 0 processpl 1240 715 0 662 5 0 5 5 0 8 0 procpl 656 1201 0 1135 6 0 6 6 0 8 0 srpgc 96 2 0 2 1 1 0 1 0 8 0 sosppl 168 1 0 1 1 0 1 1 0 8 1 sockpl 728 762 0 726 16 5 11 16 0 8 7 mcl64k 65536 3 0 0 1 0 1 1 0 8 0 mcl9k 9216 1 0 0 1 0 1 1 0 8 0 mcl8k 8192 2 0 0 1 0 1 1 0 8 0 mcl4k 4096 120 0 0 15 0 15 15 0 8 0 mcl2k 2048 23 0 0 3 0 3 3 0 8 0 mtagpl 96 7 0 0 1 0 1 1 0 8 0 mbufpl 256 212 0 0 13 0 13 13 0 8 0 bufpl 280 4984 0 125 348 0 348 348 0 8 0 anonpl 32 8470 0 0 69 0 69 69 0 246 0 amapchunkpl 152 17404 0 16836 35 5 30 30 0 158 5 amappl16 200 2353 0 2309 19 6 13 14 0 8 8 amappl15 192 14 0 14 1 1 0 1 0 8 0 amappl14 184 112 0 99 1 0 1 1 0 8 0 amappl13 176 5 0 5 1 1 0 1 0 8 0 amappl12 168 1347 0 1314 3 1 2 2 0 8 0 amappl11 160 51 0 37 1 0 1 1 0 8 0 amappl10 152 5 0 5 1 1 0 1 0 8 0 amappl9 144 255 0 255 1 1 0 1 0 8 0 amappl8 136 23 0 20 1 0 1 1 0 8 0 amappl7 128 109 0 96 1 0 1 1 0 8 0 amappl6 120 192 0 187 1 0 1 1 0 8 0 amappl5 112 127 0 118 1 0 1 1 0 8 0 amappl4 104 311 0 290 1 0 1 1 0 8 0 amappl3 96 3090 0 2975 4 0 4 4 0 8 0 amappl2 88 635 0 569 2 0 2 2 0 8 0 amappl1 80 9198 0 8584 15 1 14 15 0 8 0 amappl 88 4780 0 4598 5 0 5 5 0 92 0 dma16384 16384 1 0 1 1 1 0 1 0 8 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma1024 1024 2 0 1 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 10 0 0 1 0 1 1 0 8 0 uaddrrnd 24 694 0 662 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 694 0 662 1 0 1 1 0 8 0 vmmpekpl 168 7323 0 7281 3 0 3 3 0 8 0 vmmpepl 168 49068 0 47054 100 2 98 99 0 357 4 vmsppl 480 693 0 662 5 0 5 5 0 8 0 rwobjpl 72 17956 0 14639 63 0 63 63 0 8 0 pdppl 4096 1395 0 1324 99 24 75 83 0 8 4 pvpl 32 15008 0 0 123 1 122 122 0 265 0 pmappl 256 693 0 662 3 0 3 3 0 8 0 extentpl 40 45 0 27 1 0 1 1 0 8 0 phpool 112 384 0 30 11 0 11 11 0 8 0 ddb{1}> machine ddbcpu 0 Stopped at x86_ipi_db+0x27: addq $0x8,%rsp x86_ipi_db(ffffffff83879ff0) 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 __mp_lock(ffffffff83913eb8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83913eb8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 syscall(ffff80003a812020) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a812020) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f9095e448e0, count: 9 ddb{0}> trace x86_ipi_db(ffffffff83879ff0) 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 __mp_lock(ffffffff83913eb8) at __mp_lock+0x192 __mp_lock_spin sys/kern/kern_lock.c:134 [inline] __mp_lock(ffffffff83913eb8) at __mp_lock+0x192 sys/kern/kern_lock.c:165 syscall(ffff80003a812020) at syscall+0xae6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003a812020) at syscall+0xae6 sys/arch/amd64/amd64/trap.c:579 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x6f9095e448e0, count: -6 ddb{0}> machine ddbcpu 1