Lua JIT FFI bug ?

[Olivier Goudron <olivier.goudron@...>]

First, i am learning LuaJIT FFI so i am probably the source of the bug ;-)

This is the reduced program for this bug:

***

local ffi = require("ffi")

ffi.cdef[[

struct slice{

   char *data;

   int len;

};

]]

local sk = ffi.new("struct slice")

local sv = ffi.new("struct slice")

sk.data = "">

sv.data = "">

local function db_add(key, value)

sk.len = string.len(key)

ffi.copy(sk.data, key)

sv.len = string.len(value)

ffi.copy(sv.data, value)

print("add : " .. ffi.string(sk.data) .. " / " .. ffi.string(sv.data))

end

for n = 1,1000 do

db_add("key" .. n, "value" .. n)

end

***

This program print the key / value from 1 to 141 without problem but not the 142 key and do a segmentation fault at key 170.

Theses values are for my Ubuntu Box and may change on other box.

I am doing something wrong or there's a bug in LuaJIT FFI ?

Thanks in advance, Olivier.