login: uvm_fault(0xfffffd806e809010, 0xf, 0, 1) -> e
kernel: page fault trap, code=0
Stopped at      ktrops+0x58:    movq    0x10(%r14),%r14
    TID    PID    UID     PRFLAGS     PFLAGS  CPU  COMMAND
  46292  58967      0           0          0    0  syz-executor
*130995  58967      0           0  0x4000000    1K syz-executor
ktrops(ffff80002a27b4e8,ffffffffffffffff,0,c0001738,fffffd806b214b00,fffffd80097fd4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline]
ktrops(ffff80002a27b4e8,ffffffffffffffff,0,c0001738,fffffd806b214b00,fffffd80097fd4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:571
doktrace(fffffd806b214b00,4,40001738,0,ffff80002a27b4e8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline]
doktrace(fffffd806b214b00,4,40001738,0,ffff80002a27b4e8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518
sys_ktrace(ffff80002a27b4e8,ffff80003c3be110,ffff80003c3be060) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559
syscall(ffff80003c3be110) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3be110) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x608cea1a4d0, count: 10
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{1}> 
ddb{1}> set $lines = 0
ddb{1}> set $maxwidth = 0
ddb{1}> show panic
*cpu1: uvm_fault(0xfffffd806e809010, 0xf, 0, 1) -> e
ddb{1}> trace
ktrops(ffff80002a27b4e8,ffffffffffffffff,0,c0001738,fffffd806b214b00,fffffd80097fd4e0) at ktrops+0x58 ktrcanset sys/kern/kern_ktrace.c:728 [inline]
ktrops(ffff80002a27b4e8,ffffffffffffffff,0,c0001738,fffffd806b214b00,fffffd80097fd4e0) at ktrops+0x58 sys/kern/kern_ktrace.c:571
doktrace(fffffd806b214b00,4,40001738,0,ffff80002a27b4e8) at doktrace+0x6bd ktrsetchildren sys/kern/kern_ktrace.c:596 [inline]
doktrace(fffffd806b214b00,4,40001738,0,ffff80002a27b4e8) at doktrace+0x6bd sys/kern/kern_ktrace.c:518
sys_ktrace(ffff80002a27b4e8,ffff80003c3be110,ffff80003c3be060) at sys_ktrace+0x11c sys/kern/kern_ktrace.c:559
syscall(ffff80003c3be110) at syscall+0xb17 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80003c3be110) at syscall+0xb17 sys/arch/amd64/amd64/trap.c:783
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x608cea1a4d0, count: -5
ddb{1}> show registers
rdi               0xffff800039fa1000
rsi                           0x87cc    __ALIGN_SIZE+0x77cc
rbp               0xffff80003c3bde20
rbx               0xfffffd80097fd4e0
rdx               0xffff800039fa1000
rcx                           0x87cb    __ALIGN_SIZE+0x77cb
rax               0xffffffff82165583    ktrops+0x43
r8                0xfffffd806b214b00
r9                0xfffffd80097fd4e0
r10               0x8b286757b7a2e0f1
r11               0xada057c9407a53dc
r12               0xffff80002a27b4e8
r13               0xffffffffffffffff
r14               0xffffffffffffffff
r15                       0xc0001738
rip               0xffffffff82165598    ktrops+0x58
cs                               0x8
rflags                       0x10246    __ALIGN_SIZE+0xf246
rsp               0xffff80003c3bdda0
ss                              0x10
ktrops+0x58:    movq    0x10(%r14),%r14
ddb{1}> show proc
PROC (syz-executor) tid=130995 pid=58967 tcnt=3 stat=onproc
    flags process=0 proc=4000000<THREAD>
    runpri=17, usrpri=64, slppri=17, nice=20
    wchan=0x0, wmesg=, ps_single=0x0 scnt=0 ecnt=0
    forw=0xffffffffffffffff, list=0xffff80002a223a00,0xffff80002a27a800
    process=0xffff8000fffe79e0 user=0xffff80003c3b9000, vmspace=0xfffffd806e809010
    estcpu=14, cpticks=1, pctcpu=0.0, user=0, sys=1, intr=0
ddb{1}>