From: Vladimír Čunát <vladimir.cunat@nic.cz>
Date: Mon, 8 Apr 2019 10:20:20 +0000 (+0200)
Subject: lua resolve*(): fix a problem with JIT
X-Git-Tag: v4.0.0~10^2~6
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d1a229ae9f1f4b9b82df815d88de2d0597faf933;p=thirdparty%2Fknot-resolver.git

lua resolve*(): fix a problem with JIT

It caused crashes somewhere inside LuaJIT or the JIT-ed code.
---

diff --git a/daemon/lua/sandbox.lua.in b/daemon/lua/sandbox.lua.in
index 56af63cfa..6996d479d 100644
--- a/daemon/lua/sandbox.lua.in
+++ b/daemon/lua/sandbox.lua.in
@@ -37,6 +37,7 @@ local function prep_resolve_cb(finish, init)
 	if finish then
 		-- Create callback for finalization
 		finish_cb = ffi.cast('trace_callback_f', function (req)
+			jit.off(true, true) -- JIT for (C -> lua)^2 nesting isn't allowed
 			req = kres.request_t(req)
 			finish(req.answer, req)
 			finish_cb:free()