panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0xa: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *343967 8289 0 0 0x4000000 0 syz-executor1 db_enter() at db_enter+0xa sys/arch/amd64/amd64/db_interface.c:399 panic() at panic+0x147 sys/kern/subr_prf.c:208 uvm_fault_unwire_locked(20240000,20251000,0) at uvm_fault_unwire_locked+0x270 uvm_fault_unwire(10000,ffffff003cb3b400,10000) at uvm_fault_unwire+0x3b sys/uvm/uvm_fault.c:1314 physio(ffff800014b0f878,ffffff002c3cae60,ffffff002c3cae60,ffff800014b0f878,ffff800014b0f748) at physio+0x2ba sys/kern/kern_physio.c:183 spec_read(0) at spec_read+0x9d sys/kern/spec_vnops.c:223 VOP_READ(ffff800014b0f878,ffffff002c3cae60,ffffff003770a018,0) at VOP_READ+0x5e sys/kern/vfs_vops.c:247 vn_read(ffffff003770a018,ffff8000ffffa278,84e4633b) at vn_read+0x130 sys/kern/vfs_vnops.c:365 dofilereadv(0,292,ffff8000ffffa278,ffff800014b0f9a0,ffff800014b0f9b8) at dofilereadv+0x14f sys/kern/sys_generic.c:235 sys_readv(ffff800014b0fa40,ffff8000ffffa278,ffff8000149fa638) at sys_readv+0xce sys/kern/sys_generic.c:182 syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffbc,0,3,11cab2bc0d8) at Xsyscall+0x128 end of kernel end trace frame: 0x11f206576b0, count: 3 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> ddb> set $lines = 0 ddb> show panic uvm_fault_unwire_locked: address not in map ddb> trace db_enter() at db_enter+0xa sys/arch/amd64/amd64/db_interface.c:399 panic() at panic+0x147 sys/kern/subr_prf.c:208 uvm_fault_unwire_locked(20240000,20251000,0) at uvm_fault_unwire_locked+0x270 uvm_fault_unwire(10000,ffffff003cb3b400,10000) at uvm_fault_unwire+0x3b sys/uvm/uvm_fault.c:1314 physio(ffff800014b0f878,ffffff002c3cae60,ffffff002c3cae60,ffff800014b0f878,ffff800014b0f748) at physio+0x2ba sys/kern/kern_physio.c:183 spec_read(0) at spec_read+0x9d sys/kern/spec_vnops.c:223 VOP_READ(ffff800014b0f878,ffffff002c3cae60,ffffff003770a018,0) at VOP_READ+0x5e sys/kern/vfs_vops.c:247vn_read(ffffff003770a018,ffff8000ffffa278,84e4633b) at vn_read+0x130 dofilereadv(0,292,ffff8000ffffa278,ffff800014b0f9a0,ffff800014b0f9b8) at dofilereadv+0x14f sys/kern/sys_generic.c:235 sys_readv(ffff800014b0fa40,ffff8000ffffa278,ffff8000149fa638) at sys_readv+0xce sys/kern/sys_generic.c:182syscall(0) at syscall+0x3e4 Xsyscall(6,0,ffffffffffffffbc,0,3,11cab2bc0d8) at Xsyscall+0x128 end of kernel end trace frame: 0x11f206576b0, count: -12 ddb> show registers rdi 0xffffffff81e04f20 kprintf_mutex rsi 0xffffffff8126ba89 db_enter+0x9 rbp 0xffff800014b0f4f0 rbx 0xffff800014b0f590 rdx 0xffff800000ccc000 rcx 0x37d02 acpi_pdirpa+0x23b6a rax 0xffff800000ccc000 r8 0xffff800014b0f4c0 r9 0 r10 0 r11 0xffffffff813028e0 x86_bus_space_io_read_1 r12 0x3000000008 r13 0xffff800014b0f500 r14 0x100 r15 0xffffffff81c4ce55 cy_pio_rec+0x15f13 rip 0xffffffff8126ba8a db_enter+0xa cs 0x8 rflags 0x202 rsp 0xffff800014b0f4f0 ss 0x10 db_enter+0xa: popq %rbp ddb> show proc PROC (syz-executor1) pid=343967 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=59, nice=20 forw=0xffffffffffffffff, list=0xffff8000ffffa020,0xffff8000ffffb098 process=0xffff8000149fa638 user=0xffff800014b0a000, vmspace=0xffffff003f12c948 estcpu=9, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 8289 480189 45459 0 2 0 syz-executor1 8289 300379 45459 0 2 0x4000080 syz-executor1 * 8289 343967 45459 0 7 0x4000000 syz-executor1 8289 110415 45459 0 2 0x4000000 syz-executor1 8289 222151 45459 0 2 0x4000000 syz-executor1 96997 378051 7799 0 2 0x4081000 syz-executor0 96997 5893 7799 0 2 0x4081000 syz-executor0 96997 366335 7799 0 2 0x4081080 syz-executor0 96997 314638 7799 0 2 0x4081080 syz-executor0 96997 46778 7799 0 3 0x4003000 suspend syz-executor0 55981 337912 66874 0 3 0x82 netio sshd 6573 202846 0 0 3 0x14200 bored sosplice 7799 354165 10106 0 3 0x82 wait syz-executor0 45459 491825 10106 0 3 0x82 wait syz-executor1 10106 184497 70505 0 3 0x82 thrsleep syz-fuzzer 10106 125704 70505 0 3 0x4000082 thrsleep syz-fuzzer 10106 135221 70505 0 3 0x4000082 thrsleep syz-fuzzer 10106 128606 70505 0 3 0x4000082 kqread syz-fuzzer 10106 492117 70505 0 3 0x4000082 thrsleep syz-fuzzer 10106 156294 70505 0 3 0x4000082 thrsleep syz-fuzzer 10106 448359 70505 0 3 0x4000082 thrsleep syz-fuzzer 70505 111313 49836 0 3 0x10008a pause ksh 49836 320105 66874 0 3 0x92 select sshd 53603 393155 1 0 3 0x100083 ttyin getty 66874 284611 1 0 3 0x80 select sshd 86082 50328 29141 73 2 0x100010 syslogd 29141 447416 1 0 3 0x100082 netio syslogd 33472 260856 1 77 3 0x100090 poll dhclient 5536 114462 1 0 3 0x80 poll dhclient 26530 174783 0 0 2 0x14200 zerothread 47400 237466 0 0 3 0x14200 aiodoned aiodoned 81554 166555 0 0 3 0x14200 syncer update 4831 375920 0 0 3 0x14200 cleaner cleaner 35780 415877 0 0 3 0x14200 reaper reaper 10639 111229 0 0 3 0x14200 pgdaemon pagedaemon 80876 290499 0 0 3 0x14200 bored crynlk 73565 242952 0 0 3 0x14200 bored crypto 3509 333658 0 0 3 0x40014200 acpi0 acpi0 94651 98919 0 0 3 0x14200 bored softnet 54444 397709 0 0 3 0x14200 bored systqmp 2593 471017 0 0 3 0x14200 bored systq 7565 83617 0 0 3 0x40014200 bored softclock 67712 344639 0 0 3 0x40014200 idle0 1 148929 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper