panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x1c: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *371734 33213 0 0x8000000 0x4000000 0 syz-executor.5 461883 40404 0 0x8000002 0 1 syz-executor.6 db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82926f73) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068be0560,20000000,20001000) at uvm_fault_unwire_locked+0x331 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8068be0560,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a20e000,ffff80002a2feda0,ffff80002a2fed00) at sys_sysctl+0x236 sys/kern/kern_sysctl.c:259 syscall(ffff80002a2feda0) at syscall+0x4e2 mi_syscall sys/sys/syscall_mi.h:177 [inline] syscall(ffff80002a2feda0) at syscall+0x4e2 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x93af22b8b50, count: 8 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+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82926f73) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068be0560,20000000,20001000) at uvm_fault_unwire_locked+0x331 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8068be0560,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a20e000,ffff80002a2feda0,ffff80002a2fed00) at sys_sysctl+0x236 sys/kern/kern_sysctl.c:259 syscall(ffff80002a2feda0) at syscall+0x4e2 mi_syscall sys/sys/syscall_mi.h:177 [inline] syscall(ffff80002a2feda0) at syscall+0x4e2 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x93af22b8b50, count: -7 ddb{0}> show registers rdi 0 rsi 0x1 rbp 0xffff80002a2fea90 rbx 0xffffffff82d19cb7 cpu_info_full_primary+0x2cb7 rdx 0 rcx 0xffff80002a20e000 rax 0xffffffff82d18ff0 cpu_info_full_primary+0x1ff0 r8 0x101010101010101 r9 0x8080808080808080 r10 0xab4bc1169739a250 r11 0x82a88ed25b16be7c r12 0xffffffff82d19ab8 cpu_info_full_primary+0x2ab8 r13 0 r14 0 r15 0x1 rip 0xffffffff813462ec db_enter+0x1c cs 0x8 rflags 0x246 rsp 0xffff80002a2fea80 ss 0 db_enter+0x1c: addq $0x8,%rsp ddb{0}> show proc PROC (syz-executor.5) tid=371734 pid=33213 tcnt=3 stat=onproc flags process=8000000 proc=4000000 runpri=36, usrpri=82, slppri=36, nice=20 wchan=0x0, wmesg=, ps_single=0x0 forw=0xffffffffffffffff, list=0xffff80002a20e7f8,0xffff80002a20eab0 process=0xffff8000ffff1650 user=0xffff80002a2f9000, vmspace=0xfffffd8068be0560 estcpu=36, cpticks=0, pctcpu=0.0, user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 56728 371238 24799 0 2 0x8000000 syz-executor.3 85399 515587 21348 0 2 0x8000000 syz-executor.2 33213 510152 45300 0 2 0x8000000 syz-executor.5 *33213 371734 45300 0 7 0xc000000 syz-executor.5 33213 305397 45300 0 2 0xc000000 syz-executor.5 97881 490373 40404 0 3 0x8000080 nanoslp syz-executor.6 97881 238603 40404 0 3 0xc000080 fsleep syz-executor.6 97881 30974 40404 0 3 0xc000080 fsleep syz-executor.6 99476 136310 44135 0 2 0x8000000 syz-executor.0 79282 3968 33738 0 2 0x8000000 syz-executor.7 79282 411901 33738 0 2 0xc000000 syz-executor.7 79282 160843 33738 0 2 0xc000000 syz-executor.7 21348 193782 23588 0 3 0x8000082 nanoslp syz-executor.2 54114 181991 23588 0 3 0x8000082 nanoslp syz-executor.1 44135 209363 23588 0 3 0x8000082 nanoslp syz-executor.0 45300 396125 23588 0 3 0x8000082 nanoslp syz-executor.5 40404 461883 23588 0 7 0x8000002 syz-executor.6 33738 400273 23588 0 3 0x8000082 nanoslp syz-executor.7 27842 469904 23588 0 2 0x8000482 syz-executor.4 24799 187533 23588 0 3 0x8000082 nanoslp syz-executor.3 23588 138805 53437 0 3 0x1a000082 thrsleep syz-execprog 23588 100881 53437 0 3 0x1e000082 thrsleep syz-execprog 23588 454530 53437 0 3 0x1e000082 wait syz-execprog 23588 494764 53437 0 3 0x1e000082 wait syz-execprog 23588 392433 53437 0 3 0x1e000082 wait syz-execprog 23588 109526 53437 0 3 0x1e000082 thrsleep syz-execprog 23588 495732 53437 0 3 0x1e000082 wait syz-execprog 23588 406075 53437 0 3 0x1e000082 wait syz-execprog 23588 450720 53437 0 3 0x1e000082 wait syz-execprog 23588 429708 53437 0 3 0x1e000082 wait syz-execprog 23588 88407 53437 0 3 0x1e000082 thrsleep syz-execprog 23588 187858 53437 0 3 0x1e000082 thrsleep syz-execprog 23588 453594 53437 0 3 0x1e000082 wait syz-execprog 23588 94722 53437 0 3 0x1e000082 thrsleep syz-execprog 23588 363081 53437 0 3 0x1e000082 kqread syz-execprog 23588 344513 53437 0 3 0x1e000082 thrsleep syz-execprog 53437 421963 62708 0 3 0x810008a sigsusp ksh 62708 511126 33958 0 3 0x1800009a kqread sshd 94337 51029 1 0 3 0x18100083 ttyin getty 33958 210707 1 0 3 0x18000088 kqread sshd 89654 235979 19428 73 3 0x19100090 kqread syslogd 19428 67057 1 0 3 0x18100082 sbwait syslogd 84358 451784 1 0 3 0x18100080 kqread resolvd 27236 1698 59837 77 3 0x18100092 kqread dhcpleased 94832 392107 59837 77 3 0x18100092 kqread dhcpleased 59837 501723 1 0 3 0x18000080 kqread dhcpleased 3062 91929 0 0 3 0x14200 bored smr 42712 412007 0 0 2 0x14200 zerothread 31665 416770 0 0 3 0x14200 aiodoned aiodoned 85718 141874 0 0 3 0x14200 syncer update 51116 9227 0 0 3 0x14200 cleaner cleaner 21010 116380 0 0 3 0x14200 reaper reaper 82922 153548 0 0 3 0x14200 pgdaemon pagedaemon 61275 170176 0 0 3 0x14200 bored viomb 28869 224774 0 0 3 0x40014200 acpi0 acpi0 18114 440474 0 0 3 0x40014200 idle1 24783 263692 0 0 3 0x14200 bored softnet3 44792 485685 0 0 3 0x14200 bored softnet2 94769 18055 0 0 3 0x14200 bored softnet1 20652 164188 0 0 3 0x14200 bored softnet0 21382 428544 0 0 3 0x14200 bored systqmp 95978 198679 0 0 3 0x14200 bored systq 73983 188706 0 0 3 0x14200 tmoslp softclockmp 10788 22028 0 0 3 0x40014200 tmoslp softclock 30386 139636 0 0 3 0x40014200 idle0 1 175370 0 0 3 0x8000082 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb{0}> show all locks CPU 1: exclusive sched_lock &sched_lock r = 0 (0xffffffff82ded3d8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 single_thread_check+0x41 sys/kern/kern_sig.c:2058 #2 sleep_finish+0x2c5 sleep_signal_check sys/kern/kern_synch.c:458 [inline] #2 sleep_finish+0x2c5 sys/kern/kern_synch.c:439 #3 sys_nanosleep+0x1f8 sys/kern/kern_time.c:297 #4 syscall+0x55d mi_syscall sys/sys/syscall_mi.h:177 [inline] #4 syscall+0x55d sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 Process 33213 (syz-executor.5) thread 0xffff80002a20e000 (371734) shared rwlock vmmaplk r = 0 (0xfffffd8068be0658) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #3 sys_sysctl+0x236 sys/kern/kern_sysctl.c:259 #4 syscall+0x4e2 mi_syscall sys/sys/syscall_mi.h:177 [inline] #4 syscall+0x4e2 sys/arch/amd64/amd64/trap.c:577 #5 Xsyscall+0x128 exclusive kernel_lock &kernel_lock r = 0 (0xffffffff82d5f9f8) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 __mp_acquire_count+0x48 sys/kern/kern_lock.c:227 #2 mi_switch+0x494 sys/kern/sched_bsd.c:470 #3 sleep_finish+0x19d sys/kern/kern_synch.c:414 #4 rw_enter+0x29a sys/kern/kern_rwlock.c:285 #5 uvm_fault_unwire+0x35 sys/uvm/uvm_fault.c:1622 #6 sys_sysctl+0x236 sys/kern/kern_sysctl.c:259 #7 syscall+0x4e2 mi_syscall sys/sys/syscall_mi.h:177 [inline] #7 syscall+0x4e2 sys/arch/amd64/amd64/trap.c:577 #8 Xsyscall+0x128 exclusive rwlock sysctllk r = 0 (0xffffffff82cefe00) #0 witness_lock+0x446 stacktrace_save sys/sys/stacktrace.h:37 [inline] #0 witness_lock+0x446 sys/kern/subr_witness.c:1187 #1 rw_enter+0x32a sys/kern/kern_rwlock.c:309 #2 sys_sysctl+0x1ce sys/kern/kern_sysctl.c:238 #3 syscall+0x4e2 mi_syscall sys/sys/syscall_mi.h:177 [inline] #3 syscall+0x4e2 sys/arch/amd64/amd64/trap.c:577 #4 Xsyscall+0x128 ddb{0}> show malloc Type InUse MemUse HighUse Limit Requests Type Lim devbuf 10170 6407K 6419K 166960K 11251 0 pcb 15 10K 10K 166960K 15 0 rtable 234 6K 6K 166960K 382 0 pf 29 8K 8K 166960K 32 0 ifaddr 44 15K 15K 166960K 50 0 ifgroup 50 2K 2K 166960K 55 0 counters 64 36K 36K 166960K 66 0 ioctlops 0 0K 2K 166960K 30 0 mount 1 1K 1K 166960K 1 0 log 0 0K 0K 166960K 4 0 vnodes 1272 80K 80K 166960K 1288 0 UFS quota 1 32K 32K 166960K 1 0 UFS mount 5 36K 36K 166960K 5 0 shm 2 1K 1K 166960K 2 0 VM map 2 1K 1K 166960K 2 0 sem 2 0K 0K 166960K 2 0 dirhash 12 2K 2K 166960K 12 0 ACPI 1697 195K 286K 166960K 12548 0 file desc 16 57K 85K 166960K 10769 0 proc 56 78K 127K 166960K 499 0 subproc 0 0K 0K 166960K 13 0 NFS srvsock 1 0K 0K 166960K 1 0 NFS daemon 1 16K 16K 166960K 1 0 in_multi 99 7K 7K 166960K 110 0 ether_multi 1 0K 0K 166960K 1 0 ISOFS mount 1 32K 32K 166960K 1 0 MSDOSFS mount 1 16K 16K 166960K 1 0 ttys 25 122K 122K 166960K 25 0 exec 0 0K 1K 166960K 407 0 tdb 3 0K 0K 166960K 3 0 VM swap 8 62K 64K 166960K 10 0 UVM amap 260 77K 78K 166960K 114770 0 UVM aobj 3 2K 2K 166960K 3 0 pinsyscall 36 72K 100K 166960K 12070 0 memdesc 1 4K 4K 166960K 1 0 crypto data 1 1K 1K 166960K 1 0 NDP 11 0K 2K 166960K 30 0 temp 1 6796K 6861K 166960K 25984 0 kqueue 12 18K 18K 166960K 34 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 39 0 36 1 0 1 1 0 8 0 rtentry 112 122 0 12 4 0 4 4 0 8 0 unpcb 144 45 0 32 1 0 1 1 0 8 0 syncache 336 8 0 8 2 2 0 1 0 8 0 tcpqe 32 395 0 395 2 2 0 1 0 8 0 tcpcb 808 12 0 9 1 0 1 1 0 8 0 arp 120 20 0 2 1 0 1 1 0 8 0 inpcb 392 66 0 60 1 0 1 1 0 8 0 nd6 136 27 0 3 2 1 1 1 0 8 0 kcovpl 48 1 0 1 1 1 0 1 0 8 0 art_heap8 4096 1 0 0 1 0 1 1 0 8 0 art_heap4 256 500 0 48 32 3 29 29 0 8 0 art_table 32 501 0 48 5 1 4 4 0 8 0 art_node 16 121 0 21 1 0 1 1 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino2pl 256 12206 0 10689 95 0 95 95 0 8 0 ffsino 272 12206 0 10689 103 1 102 102 0 8 0 nchpl 144 23103 0 21336 66 0 66 66 0 8 0 uvmvnodes 80 5926 0 0 121 0 121 121 0 8 0 vnodes 216 5926 0 0 330 0 330 330 0 8 0 namei 1024 49870 0 49870 3 2 1 2 0 8 1 percpumem 16 47 0 1 1 0 1 1 0 8 0 kstatmem 264 24 0 2 2 0 2 2 0 8 0 scxspl 216 72008 0 72008 11 10 1 8 1 8 1 plimitpl 152 50 0 35 1 0 1 1 0 8 0 sigapl 424 11102 0 11055 7 1 6 6 0 8 0 futexpl 64 26515 0 26513 2 1 1 1 0 8 0 knotepl 120 114 0 0 4 0 4 4 0 8 0 kqueuepl 216 30 0 22 1 0 1 1 0 8 0 pipepl 320 183 0 155 5 2 3 3 0 8 0 fdescpl 496 11084 0 11057 8 4 4 5 0 8 0 filepl 152 12660 0 12532 7 1 6 6 0 8 0 lockfpl 104 6 0 4 1 0 1 1 0 8 0 lockfspl 48 4 0 2 1 0 1 1 0 8 0 sessionpl 144 32 0 16 1 0 1 1 0 8 0 pgrppl 48 32 0 16 1 0 1 1 0 8 0 ucredpl 104 96 0 86 1 0 1 1 0 8 0 zombiepl 144 11057 0 11055 2 1 1 1 0 8 0 processpl 1136 11102 0 11055 5 1 4 4 0 8 0 procpl 680 32127 0 32059 9 2 7 7 0 8 1 sockpl 584 150 0 128 2 0 2 2 0 8 0 mcl8k 8192 3 0 0 1 0 1 1 0 8 0 mcl4k 4096 5 0 0 1 0 1 1 0 8 0 mcl2k 2048 363 0 0 44 0 44 44 0 8 0 mtagpl 96 2 0 0 1 0 1 1 0 8 0 mbufpl 256 388 0 0 24 0 24 24 0 8 0 bufpl 280 15678 0 9416 448 0 448 448 0 8 0 anonpl 24 1096128 0 1090933 63 30 33 55 0 186 0 amapchunkpl 152 362653 0 362044 46 18 28 29 0 158 3 amappl16 200 21150 0 21071 9 4 5 5 0 8 0 amappl15 192 50 0 49 4 3 1 1 0 8 0 amappl14 184 207 0 197 3 2 1 2 0 8 0 amappl13 176 17 0 17 2 2 0 1 0 8 0 amappl12 168 11807 0 11779 3 1 2 2 0 8 0 amappl11 160 114 0 104 1 0 1 1 0 8 0 amappl10 152 83 0 72 3 2 1 1 0 8 0 amappl9 144 352 0 352 2 2 0 1 0 8 0 amappl8 136 225 0 189 2 0 2 2 0 8 0 amappl7 128 110 0 101 1 0 1 1 0 8 0 amappl6 120 437 0 423 3 2 1 2 0 8 0 amappl5 112 236 0 224 1 0 1 1 0 8 0 amappl4 104 711 0 678 3 1 2 2 0 8 0 amappl3 96 71876 0 71809 4 1 3 3 0 8 1 amappl2 88 11678 0 11615 5 3 2 4 0 8 0 amappl1 80 46513 0 46030 32 20 12 22 0 8 0 amappl 88 114036 0 113865 8 3 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 2 0 0 1 0 1 1 0 8 0 uaddrrnd 24 11084 0 11057 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 11084 0 11057 1 0 1 1 0 8 0 vmmpekpl 168 92605 0 92581 2 0 2 2 0 8 0 vmmpepl 168 563387 0 561761 121 44 77 114 0 357 2 vmsppl 448 11083 0 11057 5 1 4 4 0 8 0 rwobjpl 56 173297 0 166413 110 12 98 98 0 8 0 pdppl 4096 22175 0 22114 171 106 65 75 0 8 4 pvpl 32 48266 0 0 391 1 390 390 0 265 0 pmappl 248 11083 0 11057 5 3 2 3 0 8 0 extentpl 40 56 0 38 1 0 1 1 0 8 0 phpool 112 500 0 119 12 0 12 12 0 8 0 ddb{0}> machine ddbcpu 0 Invalid cpu 0 ddb{0}> trace db_enter() at db_enter+0x1c sys/arch/amd64/amd64/db_interface.c:437 panic(ffffffff82926f73) at panic+0x17b sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd8068be0560,20000000,20001000) at uvm_fault_unwire_locked+0x331 sys/uvm/uvm_fault.c:1663 uvm_fault_unwire(fffffd8068be0560,20000000,20001000) at uvm_fault_unwire+0x43 sys/uvm/uvm_fault.c:1623 sys_sysctl(ffff80002a20e000,ffff80002a2feda0,ffff80002a2fed00) at sys_sysctl+0x236 sys/kern/kern_sysctl.c:259 syscall(ffff80002a2feda0) at syscall+0x4e2 mi_syscall sys/sys/syscall_mi.h:177 [inline] syscall(ffff80002a2feda0) at syscall+0x4e2 sys/arch/amd64/amd64/trap.c:577 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x93af22b8b50, count: -7 ddb{0}> machine ddbcpu 1