syzbot

panic: uvm_fault_unwire_locked: address not in map
Starting stack trace...
panic(ffffffff83402f4e) at panic+0x1d0 sys/kern/subr_prf.c:229
uvm_fault_unwire_locked(fffffd806c7193f0,200000390000,200000392000) at uvm_fault_unwire_locked+0x4be
uvm_fault_wire(fffffd806c7193f0,200000390000,2000003a1000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1724 [inline]
uvm_fault_wire(fffffd806c7193f0,200000390000,2000003a1000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1706
uvm_vslock_device(ffff80002a260a78,200000390040,10000,3,ffff800032006908) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169
physio(ffffffff81a11ee0,d02,8000,ffffffff81a12730,ffff800032006be8) at physio+0x257 sys/kern/kern_physio.c:139
spec_read(ffff800032006a40) at spec_read+0x14b sys/kern/spec_vnops.c:215
VOP_READ(fffffd805fa6c200,ffff800032006be8,0,fffffd80097fd1a0) at VOP_READ+0x101 sys/kern/vfs_vops.c:227
vn_read(fffffd806cd39ca0,ffff800032006be8,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369
dofilereadv(ffff80002a260a78,5,ffff800032006be8,1,ffff800032006ca0) at dofilereadv+0x25a sys/kern/sys_generic.c:252
sys_pread(ffff80002a260a78,ffff800032006d50,ffff800032006ca0) at sys_pread+0xae sys/kern/vfs_syscalls.c:3307
syscall(ffff800032006d50) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff800032006d50) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:775
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x48fee510100, count: 245
End of stack trace.