[BUG?] Segmentation fault in lua_error() - easily reproducible
- From: "Sergei Zhirikov" <dmarc-noreply@xxxxxxxxxxxxx> (Redacted sender "sfzhi@xxxxxxxxx" for DMARC)
- To: "luajit@xxxxxxxxxxxxx" <luajit@xxxxxxxxxxxxx>
- Date: Fri, 12 Dec 2014 20:44:27 +0000 (UTC)
Hi,
I've encountered this case of a consistent segmentation fault in LuaJIT (tested
with 2.0.3 on x86 and x86_64).The following simple example allows to reproduce
it:
#include <lua.h>#include <lualib.h>
#include <lauxlib.h>
#include <stdio.h>
int main()
{
lua_State *lua = luaL_newstate();
luaL_openlibs(lua);
luaL_loadstring(lua, "coroutine.yield()");
int res = lua_resume(lua, 0);
printf("res=%d, top=%d\n", res, lua_gettop(lua));
lua_pushliteral(lua, "test");
lua_error(lua);
return 0;
}
This code is supposed to panic, but it results in a segmentation fault inside
lua_error() instead. Admittedly, this not a very common usage pattern, but
calling lua_error() on a suspended Lua thread can be useful sometimes. Also,
the "classic" Lua implementation doesn't have a problem with this usage.
I'm wondering, can this be fixed with a simple patch?
Thanks & regards,
Sergei.
Other related posts:
- » [BUG?] Segmentation fault in lua_error() - easily reproducible - Sergei Zhirikov
