syzbot

panic: uvm_fault_unwire_locked: address not in map
Starting stack trace...
panic(ffffffff833e48e7) at panic+0x1d0 sys/kern/subr_prf.c:229
uvm_fault_unwire_locked(fffffd805faa8218,2000002a0000,2000002a1000) at uvm_fault_unwire_locked+0x4ee
uvm_fault_wire(fffffd805faa8218,2000002a0000,2000002b1000,3) at uvm_fault_wire+0x12d uvm_fault_unwire sys/uvm/uvm_fault.c:1744 [inline]
uvm_fault_wire(fffffd805faa8218,2000002a0000,2000002b1000,3) at uvm_fault_wire+0x12d sys/uvm/uvm_fault.c:1726
uvm_vslock_device(ffff80003c437780,2000002a0040,10000,3,ffff80002a380258) at uvm_vslock_device+0x112 sys/uvm/uvm_glue.c:169
physio(ffffffff818c90f0,d02,8000,ffffffff818c9940,ffff80002a380538) at physio+0x257 sys/kern/kern_physio.c:139
spec_read(ffff80002a380390) at spec_read+0x14b sys/kern/spec_vnops.c:215
VOP_READ(fffffd806fd12208,ffff80002a380538,0,fffffd80097fb478) at VOP_READ+0x101 sys/kern/vfs_vops.c:227
vn_read(fffffd806137dc70,ffff80002a380538,1) at vn_read+0x17b sys/kern/vfs_vnops.c:369
dofilereadv(ffff80003c437780,5,ffff80002a380538,1,ffff80002a3805f0) at dofilereadv+0x25a sys/kern/sys_generic.c:252
sys_pread(ffff80003c437780,ffff80002a3806a0,ffff80002a3805f0) at sys_pread+0xae sys/kern/vfs_syscalls.c:3307
syscall(ffff80002a3806a0) at syscall+0xbd4 mi_syscall sys/sys/syscall_mi.h:176 [inline]
syscall(ffff80002a3806a0) at syscall+0xbd4 sys/arch/amd64/amd64/trap.c:765
Xsyscall() at Xsyscall+0x128
end of kernel
end trace frame: 0x5d58ce89090, count: 245
End of stack trace.
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