login: panic: uvm_fault_unwire_locked: address not in map Stopped at db_enter+0xa: popq %rbp TID PID UID PRFLAGS PFLAGS CPU COMMAND *215679 16065 0 0 0x4000000 0K 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(20001000,20003000,0) at uvm_fault_unwire_locked+0x270 uvm_fault_unwire(1000,ffffff006a688900,1000) at uvm_fault_unwire+0x3b sys/uvm/uvm_fault.c:1314 physio(ffff800021191638,ffffff006a6cd5b8,ffffff006a6cd5b8,ffff800021191638,ffff800021191508) at physio+0x2ba sys/kern/kern_physio.c:183 spec_read(0) at spec_read+0xa5 sys/kern/spec_vnops.c:223 VOP_READ(ffff800021191638,ffffff006a6cd5b8,ffffff006fa5f4b0,0) at VOP_READ+0x5e sys/kern/vfs_vops.c:247 vn_read(ffffff006fa5f4b0,ffff800021084260,1000) at vn_read+0x130 sys/kern/vfs_vnops.c:365 dofilereadv(0,1,ffff800021084260,ffff800021191760,ffff800021191778) at dofilereadv+0x14f sys/kern/sys_generic.c:235 sys_readv(780,ffff800021084260,0) at sys_readv+0xce sys/kern/sys_generic.c:182 syscall(0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,ffffffffffffffbc,0,3,5c4958e5010) at Xsyscall+0x128 end of kernel end trace frame: 0x5c699718940, 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{0}> ddb{0}> set $lines = 0 ddb{0}> show panic uvm_fault_unwire_locked: address not in map ddb{0}> 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(20001000,20003000,0) at uvm_fault_unwire_locked+0x270 uvm_fault_unwire(1000,ffffff006a688900,1000) at uvm_fault_unwire+0x3b sys/uvm/uvm_fault.c:1314 physio(ffff800021191638,ffffff006a6cd5b8,ffffff006a6cd5b8,ffff800021191638,ffff800021191508) at physio+0x2ba sys/kern/kern_physio.c:183 spec_read(0) at spec_read+0xa5 sys/kern/spec_vnops.c:223 VOP_READ(ffff800021191638,ffffff006a6cd5b8,ffffff006fa5f4b0,0) at VOP_READ+0x5e sys/kern/vfs_vops.c:247vn_read(ffffff006fa5f4b0,ffff800021084260,1000) at vn_read+0x130 dofilereadv(0,1,ffff800021084260,ffff800021191760,ffff800021191778) at dofilereadv+0x14f sys/kern/sys_generic.c:235 sys_readv(780,ffff800021084260,0) at sys_readv+0xce sys/kern/sys_generic.c:182 syscall(0) at syscall+0x489 mi_syscall sys/sys/syscall_mi.h:99 [inline] syscall(0) at syscall+0x489 sys/arch/amd64/amd64/trap.c:583 Xsyscall(6,0,ffffffffffffffbc,0,3,5c4958e5010) at Xsyscall+0x128 end of kernel end trace frame: 0x5c699718940, count: -12 ddb{0}> show registers rdi 0xffffffff81e3e438 kprintf_mutex rsi 0x5 rbp 0xffff8000211912b0 rbx 0xffff800021191350 rdx 0x3fd rcx 0 rax 0x1 r8 0xffff800021191280 r9 0 r10 0 r11 0xffffffff81780d60 x86_bus_space_io_read_1 r12 0x3000000008 r13 0xffff8000211912c0 r14 0x100 r15 0xffffffff81c66154 cy_pio_rec+0x167f5 rip 0xffffffff817b958a db_enter+0xa cs 0x8 rflags 0x202 rsp 0xffff8000211912b0 ss 0x10 db_enter+0xa: popq %rbp ddb{0}> show proc PROC (syz-executor1) pid=215679 stat=onproc flags process=0 proc=4000000 pri=17, usrpri=50, nice=20 forw=0xffffffffffffffff, list=0xffff8000210852c8,0xffff8000210b7c48 process=0xffff8000210a6cb0 user=0xffff80002118c000, vmspace=0xffffff007f124420 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb{0}> ps PID TID PPID UID S FLAGS WAIT COMMAND 16065 316279 36651 0 3 0x80 nanosleep syz-executor1 *16065 215679 36651 0 7 0x4000000 syz-executor1 16065 319175 36651 0 3 0x4000080 fsleep syz-executor1 36651 429425 52945 0 3 0x82 nanosleep syz-executor1 26907 463433 52945 0 3 0x82 nanosleep syz-executor0 52945 418017 29652 0 3 0x82 thrsleep syz-execprog 52945 297157 29652 0 3 0x4000082 thrsleep syz-execprog 52945 292148 29652 0 3 0x4000082 thrsleep syz-execprog 52945 271022 29652 0 3 0x4000082 thrsleep syz-execprog 52945 505037 29652 0 3 0x4000082 thrsleep syz-execprog 52945 159637 29652 0 3 0x4000082 thrsleep syz-execprog 52945 371510 29652 0 3 0x4000082 kqread syz-execprog 52945 239637 29652 0 3 0x4000082 thrsleep syz-execprog 52945 35817 29652 0 3 0x4000082 thrsleep syz-execprog 52945 13254 29652 0 3 0x4000082 thrsleep syz-execprog 29652 180741 10594 0 3 0x10008a pause ksh 10594 287218 82329 0 3 0x92 select sshd 35256 258254 1 0 3 0x100083 ttyin getty 82329 187950 1 0 3 0x80 select sshd 57439 112731 27159 73 3 0x100090 kqread syslogd 27159 495786 1 0 3 0x100082 netio syslogd 64929 217547 1 77 3 0x100090 poll dhclient 88053 442660 1 0 3 0x80 poll dhclient 42082 226338 0 0 3 0x14200 pgzero zerothread 7375 363170 0 0 3 0x14200 aiodoned aiodoned 66817 307780 0 0 3 0x14200 syncer update 7148 441387 0 0 3 0x14200 cleaner cleaner 45512 317540 0 0 3 0x14200 reaper reaper 8627 38972 0 0 3 0x14200 pgdaemon pagedaemon 36049 467061 0 0 3 0x14200 bored crynlk 46942 221470 0 0 3 0x14200 bored crypto 63244 461347 0 0 3 0x40014200 acpi0 acpi0 13540 152251 0 0 7 0x40014200 idle1 929 350321 0 0 3 0x14200 bored softnet 7746 140460 0 0 3 0x14200 bored systqmp 83199 464848 0 0 3 0x14200 bored systq 30836 36388 0 0 3 0x40014200 bored softclock 13219 452434 0 0 3 0x40014200 idle0 1 75885 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper