panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0x25: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND *107100 39312 0 0 0x4000000 0K syz-executor 457163 39312 0 0 0x4000000 1 syz-executor db_enter() at db_enter+0x25 sys/arch/amd64/amd64/db_interface.c:438 panic(ffffffff8349c16e) at panic+0x1e5 sys/kern/subr_prf.c:198 uvm_fault_unwire_locked(fffffd806ea5fd68,2000003b0000,2000003b1000) at uvm_fault_unwire_locked+0x4be uvm_fault_wire(fffffd806ea5fd68,2000003b0000,2000003c1000,1) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline] uvm_fault_wire(fffffd806ea5fd68,2000003b0000,2000003c1000,1) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706 uvm_vslock_device(ffff8000fffef240,2000003b04c0,10000,1,ffff80002a273328) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169 physio(ffffffff81d1d220,d02,0,ffffffff81d1da70,ffff80002a273608) at physio+0x257 sys/kern/kern_physio.c:139 spec_write(ffff80002a273450) at spec_write+0x11f sys/kern/spec_vnops.c:302 VOP_WRITE(fffffd807d6fd378,ffff80002a273608,5,fffffd80097fd208) at VOP_WRITE+0x101 sys/kern/vfs_vops.c:245 vn_write(fffffd807021e5a0,ffff80002a273608,0) at vn_write+0x1d3 sys/kern/vfs_vnops.c:408 dofilewritev(ffff8000fffef240,4,ffff80002a273608,0,ffff80002a2736c0) at dofilewritev+0x2bd sys/kern/sys_generic.c:384 sys_write(ffff8000fffef240,ffff80002a273770,ffff80002a2736c0) at sys_write+0xa2 sys/kern/sys_generic.c:300 syscall(ffff80002a273770) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline] syscall(ffff80002a273770) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:783 Xsyscall() at Xsyscall+0x128 end of kernel end trace frame: 0x69eba853a00, 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{0}> ddb{0}> set $lines = 0 ddb{0}> set $maxwidth = 0 ddb{0}>