panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *151578 52256 32767 0x10 0x4000000 0 syz-executor 194497 27121 32767 0x10 0 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340d0c9) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c13cad0,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c13cad0,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(42,ffff80003c759d98,4,400000000100,ffff80003c759dc8,0,fe208e577f758511,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(42,ffff80003c759d98,4,400000000100,ffff80003c759dc8,0,fe208e577f758511,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c759d94,5,400000000100,ffff80003c759dc8,0,37,9c0979e97054673a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff59c8,ffff80003c759f00,ffff80003c759e50) at sys_sysctl+0x425 syscall(ffff80003c759f00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c759f00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95582b37bc0, count: 6 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}> show panic *cpu0: uvm_fault_unwire_locked: address not in map ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340d0c9) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c13cad0,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c13cad0,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(42,ffff80003c759d98,4,400000000100,ffff80003c759dc8,0,fe208e577f758511,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(42,ffff80003c759d98,4,400000000100,ffff80003c759dc8,0,fe208e577f758511,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c759d94,5,400000000100,ffff80003c759dc8,0,37,9c0979e97054673a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff59c8,ffff80003c759f00,ffff80003c759e50) at sys_sysctl+0x425 syscall(ffff80003c759f00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c759f00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95582b37bc0, count: -9 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80003c7599a0 rbx 0xffffffff8382cdc7 cpu_info_full_primary+0x2dc7 rdx 0 rcx 0xffff8000ffff59c8 rax 0xffffffff8382bff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0x8db6695c44d2a097 r11 0x7d84ac2df22e0720 r12 0xffffffff8382cbc8 cpu_info_full_primary+0x2bc8 r13 0 r14 0 r15 0x1 rip 0xffffffff82ff2595 db_enter+0x25 cs 0x8 rflags 0x246 rsp 0xffff80003c759990 ss 0x10 db_enter+0x25: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor) tid=151578 pid=52256 tcnt=4 stat=onproc flags process=10 proc=4000000 runpri=36, usrpri=50, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0 forw=0xffffffffffffffff, list=0xffff80003c5122c0,0xffff8000ffff54b8 process=0xffff8000ffff2048 user=0xffff80003c754000, vmspace=0xfffffd806c13cad0 estcpu=36, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 52256 321351 93284 32767 3 0x10 vmmaplk syz-executor 52256 84585 93284 32767 3 0x4000010 vmmaplk syz-executor *52256 151578 93284 32767 7 0x4000010 syz-executor 52256 152731 93284 32767 3 0x4000090 fsleep syz-executor 27121 194497 75482 32767 7 0x10 syz-executor 27121 238744 75482 32767 3 0x4000090 sbwait syz-executor 74955 55613 21465 32767 3 0x90 nanoslp syz-executor 74955 3587 21465 32767 3 0x4000090 sbwait syz-executor 74955 37630 21465 32767 3 0x4000090 fsleep syz-executor 31235 447598 67448 32767 3 0x90 nanoslp syz-executor 31235 284673 67448 32767 3 0x4000090 kqsel syz-executor 31235 347215 67448 32767 3 0x4000090 fsleep syz-executor 633 56436 76988 32767 3 0x90 nanoslp syz-executor 633 65868 76988 32767 3 0x4000090 fsleep syz-executor 633 30245 76988 32767 3 0x4000090 kqsel syz-executor 633 512791 76988 32767 3 0x4000090 fsleep syz-executor 45124 356310 45070 32767 3 0x90 nanoslp syz-executor 45124 452296 45070 32767 3 0x4000090 piperd syz-executor 45124 488662 45070 32767 3 0x4000090 fsleep syz-executor 29632 203485 0 0 3 0x14200 bored sosplice 21755 257842 6210 0 3 0x100082 sbwait arp 6210 129155 17222 0 3 0x10008a sigsusp sh 45070 146663 10425 32767 3 0x90 nanoslp syz-executor 17222 265037 39856 0 3 0x80 wait syz-executor 21465 468835 79471 32767 3 0x90 nanoslp syz-executor 76988 63947 96481 32767 3 0x90 nanoslp syz-executor 75482 353180 9713 32767 3 0x90 nanoslp syz-executor 93284 409747 15814 32767 3 0x90 nanoslp syz-executor 46414 221813 53834 32767 3 0x90 wait syz-executor 67448 499223 2206 32767 3 0x90 nanoslp syz-executor 9713 76919 30625 0 3 0x82 wait syz-executor 39856 305562 30625 0 3 0x82 wait syz-executor 79471 299247 30625 0 3 0x82 wait syz-executor 15814 123530 30625 0 3 0x82 wait syz-executor 96481 146150 30625 0 3 0x82 wait syz-executor 2206 219395 30625 0 3 0x82 wait syz-executor 53834 226787 30625 0 3 0x82 wait syz-executor 10425 110809 30625 0 3 0x82 wait syz-executor 30625 481087 52175 0 3 0x82 kqread syz-executor 52175 361109 14580 0 3 0x10008a sigsusp ksh 14580 100013 40209 0 3 0x98 kqread sshd-session 40209 261449 28215 0 3 0x92 kqread sshd-session 35667 56615 1 0 3 0x100083 ttyin getty 28215 332696 1 0 3 0x88 kqread sshd 56611 270700 7176 73 3 0x1100090 kqread syslogd 7176 46899 1 0 3 0x100082 sbwait syslogd 36393 105495 1 0 3 0x100080 kqread resolvd 47675 243276 47795 77 3 0x100092 kqread dhcpleased 31695 254901 47795 77 3 0x100092 kqread dhcpleased 47795 78434 1 0 3 0x80 kqread dhcpleased 1804 520837 0 0 3 0x14200 bored smr 73638 253565 0 0 3 0x14200 pgzero zerothread 41033 88640 0 0 3 0x14200 aiodoned aiodoned 19541 272047 0 0 3 0x14200 syncer update 98607 228379 0 0 3 0x14200 cleaner cleaner 69439 427611 0 0 3 0x14200 reaper reaper 77158 80695 0 0 3 0x14200 pgdaemon pagedaemon 88137 223643 0 0 3 0x14200 bored viomb 41283 380859 0 0 3 0x40014200 acpi0 acpi0 55351 467143 0 0 3 0x40014200 idle1 12241 376043 0 0 3 0x14200 bored softnet3 72051 314492 0 0 3 0x14200 bored softnet2 49844 326753 0 0 3 0x14200 bored softnet1 8787 400476 0 0 3 0x14200 bored softnet0 46657 247081 0 0 3 0x14200 bored systqmp 94395 282038 0 0 3 0x14200 bored systq 789 28624 0 0 3 0x14200 tmoslp softclockmp 94500 229234 0 0 3 0x40014200 tmoslp softclock 55124 240883 0 0 3 0x40014200 idle0 1 132333 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks Process 52256 (syz-executor) thread 0xffff8000ffff59c8 (151578) shared rwlock vmmaplk r = 0 (0xfffffd806c13cbd0) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_read+0x3af sys/kern/kern_rwlock.c:405 #2 uvm_fault_unwire+0x3e sys/uvm/uvm_fault.c:1701 #3 kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] #3 kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff83899e88) #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+0x24f sys/kern/kern_synch.c:414 #4 rw_do_enter_read+0x2de sys/kern/kern_rwlock.c:385 #5 uvmfault_lookup+0x122 sys/uvm/uvm_fault.c:1864 #6 uvm_fault_check+0x4b sys/uvm/uvm_fault.c:732 #7 uvm_fault+0x106 sys/uvm/uvm_fault.c:668 #8 kpageflttrap+0x2d0 sys/arch/amd64/amd64/trap.c:279 #9 kerntrap+0x14a sys/arch/amd64/amd64/trap.c:332 #10 alltraps_kern_meltdown+0x7b #11 copyout+0x62 #12 kern_sysctl_dirs+0x2ef sys/kern/kern_sysctl.c:430 #13 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #14 sys_sysctl+0x425 #15 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #15 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #16 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff837e2418) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sysctl_vslock+0x45 sys/kern/kern_sysctl.c:187 #3 kern_sysctl_dirs+0x266 sys/kern/kern_sysctl.c:428 #4 kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 #5 sys_sysctl+0x425 #6 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #6 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #7 Xsyscall+0x128 Process 52256 (syz-executor) thread 0xffff8000ffff54a8 (152731) exclusive rwlock futex r = 0 (0xffffffff83854cc8) #0 witness_lock+0x5bb stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x5bb sys/kern/subr_witness.c:1155 #1 rw_do_enter_write+0x3ea sys/kern/kern_rwlock.c:316 #2 sys_futex+0x69 sys/kern/sys_futex.c:98 #3 syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] #3 syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10191 10954K 10966K 166960K 11270 0 pcb 17 12K 12K 166960K 17 0 rtable 228 6K 6K 166960K 345 0 pf 31 16K 16K 166960K 31 0 ifaddr 40 7K 7K 166960K 42 0 ifgroup 50 2K 2K 166960K 50 0 sysctl 2 1K 1K 166960K 2 0 counters 64 36K 36K 166960K 64 0 ioctlops 0 0K 2K 166960K 34 0 iov 0 0K 20K 166960K 90 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1333 84K 84K 166960K 1569 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 5K 166960K 13 0 VM map 2 1K 1K 166960K 2 0 sem 12 0K 0K 166960K 47 0 dirhash 12 2K 2K 166960K 15 0 ACPI 1692 195K 286K 166960K 12470 0 file desc 27 101K 125K 166960K 509 0 sigio 0 0K 0K 166960K 78 0 proc 61 91K 127K 166960K 510 0 subproc 72 4K 4K 166960K 72 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 ip_moptions 0 0K 0K 166960K 93 0 in_multi 89 6K 6K 166960K 103 0 ether_multi 1 0K 0K 166960K 4 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 91 413K 413K 166960K 91 0 exec 0 0K 1K 166960K 420 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 256 74K 90K 166960K 6171 0 UVM aobj 23 2K 2K 166960K 24 0 pinsyscall 49 98K 114K 166960K 1525 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 ip6_options 2 0K 0K 166960K 38 0 NDP 11 0K 1K 166960K 25 0 temp 47 8640K 8704K 166960K 5257 0 kqueue 16 26K 30K 166960K 135 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 120 192 0 123 3 0 3 3 0 8 0 rtentry 112 109 0 2 4 0 4 4 0 8 0 unpcb 144 343 0 318 2 0 2 2 0 8 1 syncache 336 9 0 9 1 0 1 1 0 8 1 tcpqe 32 1 0 1 1 0 1 1 0 8 1 tcpcb 808 204 0 199 4 0 4 4 0 8 3 arp 120 18 0 0 1 0 1 1 0 8 0 ipq 40 4 0 3 1 0 1 1 0 8 0 ipqe 40 49 0 48 1 0 1 1 0 8 0 inpcb 376 567 0 550 12 2 10 12 0 8 8 nd6 136 26 0 1 1 0 1 1 0 8 0 kcovpl 48 8 0 0 1 0 1 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 422 0 2 27 0 27 27 0 8 0 art_table 32 423 0 2 4 0 4 4 0 8 0 art_node 16 108 0 10 1 0 1 1 0 8 0 sysvmsgpl 40 4 0 1 1 0 1 1 0 8 0 semupl 112 1 0 1 1 0 1 1 0 8 1 semapl 112 45 0 35 1 0 1 1 0 8 0 shmpl 112 21 0 1 1 0 1 1 0 8 0 dirhash 1024 19 0 2 3 0 3 3 0 8 0 dino2pl 256 2259 0 758 95 0 95 95 0 8 0 ffsino 280 2259 0 758 108 0 108 108 0 8 0 nchpl 144 2993 0 1318 63 0 63 63 0 8 0 uvmvnodes 80 2340 0 0 48 0 48 48 0 8 0 vnodes 216 2340 0 0 130 0 130 130 0 8 0 namei 1024 9197 0 9197 1 0 1 1 0 8 1 percpumem 16 46 0 0 1 0 1 1 0 8 0 kstatmem 264 22 0 0 2 0 2 2 0 8 0 scxspl 216 9431 0 9431 9 1 8 8 1 8 8 plimitpl 152 128 0 103 2 0 2 2 0 8 0 sigapl 424 787 0 729 8 0 8 8 0 8 0 futexpl 64 5724 0 5718 1 0 1 1 0 8 0 knotepl 120 567 0 0 18 0 18 18 0 8 0 kqueuepl 216 234 0 221 5 0 5 5 0 8 4 pipepl 328 277 0 183 8 0 8 8 0 8 0 fdescpl 504 768 0 729 7 1 6 6 0 8 0 filepl 152 4726 0 4305 17 0 17 17 0 8 0 lockfpl 104 91 0 88 1 0 1 1 0 8 0 lockfspl 48 45 0 42 1 0 1 1 0 8 0 sessionpl 144 27 0 11 1 0 1 1 0 8 0 pgrppl 48 38 0 14 1 0 1 1 0 8 0 ucredpl 104 1155 0 1137 1 0 1 1 0 8 0 zombiepl 144 730 0 729 1 0 1 1 0 8 0 processpl 1176 787 0 729 5 0 5 5 0 8 0 procpl 656 1421 0 1350 7 0 7 7 0 8 0 sosppl 168 8 0 8 1 0 1 1 0 8 1 sockpl 688 1111 0 1002 13 2 11 13 0 8 1 mcl64k 65536 5 0 0 1 0 1 1 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 115 0 0 15 0 15 15 0 8 0 mcl2k2 2112 1 0 0 1 0 1 1 0 8 0 mcl2k 2048 22 0 0 3 0 3 3 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 367 0 0 23 0 23 23 0 8 0 bufpl 280 3175 0 124 218 0 218 218 0 8 0 anonpl 24 146418 0 142954 47 0 47 47 0 184 18 amapchunkpl 152 19945 0 19359 39 0 39 39 0 158 15 amappl16 200 3186 0 3161 21 10 11 15 0 8 8 amappl15 192 27 0 27 1 1 0 1 0 8 0 amappl14 184 108 0 97 1 0 1 1 0 8 0 amappl13 176 8 0 8 1 1 0 1 0 8 0 amappl12 168 1361 0 1322 2 0 2 2 0 8 0 amappl11 160 48 0 38 1 0 1 1 0 8 0 amappl10 152 7 0 7 1 1 0 1 0 8 0 amappl9 144 248 0 248 1 1 0 1 0 8 0 amappl8 136 24 0 22 1 0 1 1 0 8 0 amappl7 128 122 0 110 1 0 1 1 0 8 0 amappl6 120 170 0 166 1 0 1 1 0 8 0 amappl5 112 118 0 111 1 0 1 1 0 8 0 amappl4 104 302 0 286 1 0 1 1 0 8 0 amappl3 96 3678 0 3542 4 0 4 4 0 8 0 amappl2 88 655 0 595 2 0 2 2 0 8 0 amappl1 80 9894 0 9327 16 0 16 16 0 8 0 amappl 88 5766 0 5563 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 23 0 1 1 0 1 1 0 8 0 uaddrrnd 24 768 0 729 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 768 0 729 1 0 1 1 0 8 0 vmmpekpl 168 8454 0 8418 2 0 2 2 0 8 0 vmmpepl 168 54421 0 52328 107 0 107 107 0 357 13 vmsppl 456 767 0 729 7 1 6 6 0 8 0 rwobjpl 64 20580 0 17318 56 0 56 56 0 8 1 pdppl 4096 1544 0 1458 122 32 90 100 0 8 4 pvpl 32 15791 0 0 130 2 128 128 0 265 0 pmappl 248 767 0 729 4 1 3 3 0 8 0 extentpl 40 55 0 38 1 0 1 1 0 8 0 phpool 112 307 0 35 8 0 8 8 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8340d0c9) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806c13cad0,400000000000,400000002000) at uvm_fault_unwire_locked+0x48d sys/uvm/uvm_fault.c:1739 uvm_fault_unwire(fffffd806c13cad0,400000000000,400000002000) at uvm_fault_unwire+0x55 sys/uvm/uvm_fault.c:1702 kern_sysctl_dirs(42,ffff80003c759d98,4,400000000100,ffff80003c759dc8,0,fe208e577f758511,4) at kern_sysctl_dirs+0x363 sysctl_vsunlock sys/kern/kern_sysctl.c:215 [inline] kern_sysctl_dirs(42,ffff80003c759d98,4,400000000100,ffff80003c759dc8,0,fe208e577f758511,4) at kern_sysctl_dirs+0x363 sys/kern/kern_sysctl.c:432 kern_sysctl(ffff80003c759d94,5,400000000100,ffff80003c759dc8,0,37,9c0979e97054673a) at kern_sysctl+0x12d sys/kern/kern_sysctl.c:526 sys_sysctl(ffff8000ffff59c8,ffff80003c759f00,ffff80003c759e50) at sys_sysctl+0x425 syscall(ffff80003c759f00) at syscall+0xbc6 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80003c759f00) at syscall+0xbc6 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x95582b37bc0, count: -9 ddb{0}> machine ddbcpu 1