diff --git a/ggml/src/ggml-backend.cpp b/ggml/src/ggml-backend.cpp
index f397f625..c2afdf39 100644
--- a/ggml/src/ggml-backend.cpp
+++ b/ggml/src/ggml-backend.cpp
@@ -1508,7 +1508,7 @@ static int ggml_backend_sched_backend_from_buffer(ggml_backend_sched_t sched, co
     return -1;
 }
 
-#if 1
+#if 0
 #define GGML_SCHED_MAX_SPLITS_DEBUG 4096
 static char causes[GGML_DEFAULT_GRAPH_SIZE*16 + GGML_SCHED_MAX_SPLITS_DEBUG*GGML_SCHED_MAX_SPLIT_INPUTS][128]; // debug only
 #define SET_CAUSE(node, ...) sprintf(causes[hash_id(node)], __VA_ARGS__)
diff --git a/ggml/src/ggml-cuda.cu b/ggml/src/ggml-cuda.cu
index 08709151..b57f1b3b 100644
--- a/ggml/src/ggml-cuda.cu
+++ b/ggml/src/ggml-cuda.cu
@@ -3107,18 +3107,20 @@ static bool ggml_backend_cuda_device_supports_op(ggml_backend_dev_t dev, const g
                 }
                 return false;
             } break;
+        case GGML_OP_NORM:
+        case GGML_OP_RMS_NORM:
+            return ggml_is_contiguous(op->src[0]) && op->ne[0] % WARP_SIZE == 0;
+            break;
         case GGML_OP_NONE:
         case GGML_OP_RESHAPE:
         case GGML_OP_VIEW:
         case GGML_OP_PERMUTE:
         case GGML_OP_TRANSPOSE:
-        case GGML_OP_NORM:
         case GGML_OP_ADD:
         case GGML_OP_ADD1:
         case GGML_OP_SUB:
         case GGML_OP_MUL:
         case GGML_OP_DIV:
-        case GGML_OP_RMS_NORM:
         case GGML_OP_SCALE:
         case GGML_OP_SQR:
         case GGML_OP_SQRT:
diff --git a/ggml/src/ggml.c b/ggml/src/ggml.c
index 1649dd28..59f2ed04 100644
--- a/ggml/src/ggml.c
+++ b/ggml/src/ggml.c
@@ -7243,6 +7243,7 @@ struct ggml_tensor * ggml_ssm_conv(
     const int64_t n_s     = sx->ne[2];
 
     // TODO: maybe support other strides than 1?
+    // FIXME: this is always true?
     GGML_ASSERT(sx->ne[0] == d_conv - 1 + n_t);
     GGML_ASSERT(sx->ne[1] == d_inner);
     GGML_ASSERT(n_t >= 0);