diff --git a/lib/runtime-core/src/backing.rs b/lib/runtime-core/src/backing.rs
index 7ad95f70e..ed91c2293 100644
--- a/lib/runtime-core/src/backing.rs
+++ b/lib/runtime-core/src/backing.rs
@@ -134,7 +134,6 @@ impl LocalBacking {
             .info
             .data_initializers
             .iter()
-            .filter(|init| init.data.len() > 0)
         {
             let init_base = match init.base {
                 Initializer::Const(Value::I32(offset)) => offset as u32,
diff --git a/lib/spectests/tests/excludes.txt b/lib/spectests/tests/excludes.txt
index a71b54fa1..42296a2d7 100644
--- a/lib/spectests/tests/excludes.txt
+++ b/lib/spectests/tests/excludes.txt
@@ -22,8 +22,6 @@ clif:skip:names.wast:*         # Names file has parsing error?
 clif:skip:simd.wast:*          # SIMD not implemented
 clif:skip:simd_binaryen.wast:* # SIMD not implemented
 
-clif:fail:data.wast:186 # AssertUnlinkable - instantiate successful, expected unlinkable
-clif:fail:data.wast:194 # AssertUnlinkable - instantiate successful, expected unlinkable
 clif:fail:elem.wast:366 # AssertReturn - Call failed RuntimeError: WebAssembly trap occurred during runtime: `call_indirect` out-of-bounds
 clif:fail:elem.wast:367 # AssertReturn - result I32(65) ("0x41") does not match expected I32(68) ("0x44")
 clif:fail:elem.wast:379 # AssertReturn - Call failed RuntimeError: WebAssembly trap occurred during runtime: `call_indirect` out-of-bounds
@@ -32,20 +30,20 @@ clif:fail:elem.wast:381 # AssertReturn - result I32(66) ("0x42") does not match
 clif:fail:globals.wast:243 # AssertInvalid - Should be invalid
 clif:fail:linking.wast:81 # AssertReturn Get - Expected Global I32(241) got: I32(142)
 clif:fail:linking.wast:83 # AssertReturn - result I32(142) ("0x8e") does not match expected I32(241) ("0xf1")
-clif:fail:linking.wast:137 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:139 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:142 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:144 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:147 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9037 - illegal instruction"
-clif:fail:linking.wast:149 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9037 - illegal instruction"
+clif:fail:linking.wast:137 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:139 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:142 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:144 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:147 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99037 - illegal instruction"
+clif:fail:linking.wast:149 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99037 - illegal instruction"
 clif:fail:linking.wast:172 # AssertReturn - result I32(4) ("0x4") does not match expected I32(-4) ("0xfffffffc")
 clif:fail:linking.wast:173 # AssertReturn - result I32(4) ("0x4") does not match expected I32(-4) ("0xfffffffc")
 clif:fail:linking.wast:175 # AssertReturn - result I32(4) ("0x4") does not match expected I32(-4) ("0xfffffffc")
 clif:fail:linking.wast:178 # AssertReturn - Call failed RuntimeError: WebAssembly trap occurred during runtime: `call_indirect` out-of-bounds
-clif:fail:linking.wast:179 # AssertReturn - Call failed RuntimeError: "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:181 # AssertReturn - Call failed RuntimeError: "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:185 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9062 - illegal instruction"
-clif:fail:linking.wast:187 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x1032e9062 - illegal instruction"
+clif:fail:linking.wast:179 # AssertReturn - Call failed RuntimeError: "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:181 # AssertReturn - Call failed RuntimeError: "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:185 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99062 - illegal instruction"
+clif:fail:linking.wast:187 # AssertTrap - expected trap, got Runtime:Error "unknown trap at 0x108b99062 - illegal instruction"
 clif:fail:linking.wast:288 # AssertReturn - result I32(2) ("0x2") does not match expected I32(167) ("0xa7")
 clif:fail:linking.wast:289 # AssertReturn - result I32(2) ("0x2") does not match expected I32(167) ("0xa7")
 clif:fail:linking.wast:387 # AssertReturn - result I32(0) ("0x0") does not match expected I32(104) ("0x68")
@@ -846,18 +844,16 @@ llvm:fail:binary-leb128.wast:74 # Module - caught panic Any
 llvm:fail:binary-leb128.wast:86 # Module - caught panic Any
 llvm:fail:binary-leb128.wast:98 # Module - caught panic Any
 llvm:fail:binary.wast:446 # Module - caught panic Any
-llvm:fail:data.wast:186 # AssertUnlinkable - instantiate successful, expected unlinkable
-llvm:fail:data.wast:194 # AssertUnlinkable - instantiate successful, expected unlinkable
 llvm:fail:elem.wast:366 # AssertReturn - Call failed RuntimeError: WebAssembly trap occurred during runtime: incorrect `call_indirect` signature
 llvm:fail:elem.wast:367 # AssertReturn - result I32(65) ("0x41") does not match expected I32(68) ("0x44")
 llvm:fail:elem.wast:379 # AssertReturn - Call failed RuntimeError: WebAssembly trap occurred during runtime: incorrect `call_indirect` signature
 llvm:fail:elem.wast:380 # AssertReturn - result I32(65) ("0x41") does not match expected I32(69) ("0x45")
 llvm:fail:elem.wast:381 # AssertReturn - result I32(66) ("0x42") does not match expected I32(70) ("0x46")
 llvm:fail:globals.wast:243 # AssertInvalid - caught panic Any
-llvm:fail:i32.wast:243 # AssertReturn - result I32(239489359) ("0xe46514f") does not match expected I32(32) ("0x20")
-llvm:fail:i32.wast:252 # AssertReturn - result I32(239489376) ("0xe465160") does not match expected I32(32) ("0x20")
-llvm:fail:i64.wast:243 # AssertReturn - result I64(4534456815) ("0x10e4651ef") does not match expected I64(64) ("0x40")
-llvm:fail:i64.wast:252 # AssertReturn - result I64(4534456800) ("0x10e4651e0") does not match expected I64(64) ("0x40")
+llvm:fail:i32.wast:243 # AssertReturn - result I32(278753615) ("0x109d714f") does not match expected I32(32) ("0x20")
+llvm:fail:i32.wast:252 # AssertReturn - result I32(278753632) ("0x109d7160") does not match expected I32(32) ("0x20")
+llvm:fail:i64.wast:243 # AssertReturn - result I64(4573721071) ("0x1109d71ef") does not match expected I64(64) ("0x40")
+llvm:fail:i64.wast:252 # AssertReturn - result I64(4573721056) ("0x1109d71e0") does not match expected I64(64) ("0x40")
 llvm:fail:imports.wast:98 # Module - caught panic Any
 llvm:fail:imports.wast:99 # Module - caught panic Any
 llvm:fail:imports.wast:100 # Module - caught panic Any
@@ -920,10 +916,11 @@ llvm:fail:linking.wast:321 # AssertReturn - No instance available: Some("$Pm")
 llvm:fail:linking.wast:324 # AssertUnlinkable - caught panic Any
 llvm:fail:linking.wast:387 # AssertReturn - result I32(0) ("0x0") does not match expected I32(104) ("0x68")
 llvm:fail:linking.wast:388 # AssertReturn - Call failed RuntimeError: WebAssembly trap occurred during runtime: incorrect `call_indirect` signature
-llvm:fail:load.wast:201 # AssertReturn - result I32(288743455) ("0x1135e01f") does not match expected I32(32) ("0x20")
+llvm:fail:load.wast:201 # AssertReturn - result I32(327991327) ("0x138cc01f") does not match expected I32(32) ("0x20")
 llvm:fail:start.wast:92 # Module - caught panic Any
 llvm:fail:type.wast:3 # Module - caught panic Any
 
+
 # LLVM Windows
 llvm:skip:address.wast:*:windows
 llvm:skip:align.wast:*:windows