diff --git a/dsv4/kernels/attention/fmha.py b/dsv4/kernels/attention/fmha.py
index 64430b14..9f0e1059 100644
--- a/dsv4/kernels/attention/fmha.py
+++ b/dsv4/kernels/attention/fmha.py
@@ -24,7 +24,7 @@ class FmhaKernel:
         self.use_smem_p = use_smem_p if use_smem_p is not None else (head_dim > 64)
         self.debug_p_one = False  # DEBUG: write constant P=1.0 to verify mapping
         self.debug_swap_mn = False  # DEBUG: try swapping m and n0 in coordinate mapping
-        self.debug_permute = 0  # DEBUG: try different coordinate permutations (0=original,1=swap m↔n0)
+        self.debug_permute = 4  # DEBUG: try different coordinate permutations (4=swap m↔n2)
         self.acc_dtype = Float32; self.qk_acc_dtype = Float32
         self.q_dtype = BFloat16; self.o_dtype = BFloat16; self.c_dtype = BFloat16
         self.use_2cta_instrs = False; self.epilog_sync_bar_id = 1
@@ -405,6 +405,10 @@ class FmhaKernel:
                             # Permutation 1: (n0, m, n1, n2) swap m↔n0
                             # Permutation 2: (m, n1, n0, n2) swap n0↔n1
                             # Permutation 3: (m, n0, n2, n1) swap n1↔n2
+                            # Permutation 4: (n2, n0, n1, m) swap m↔n2
+                            # Permutation 5: (n1, n0, m, n2) swap m↔n1
+                            # Permutation 6: (n0, n1, n2, m) rotate right
+                            # Permutation 7: (n2, n1, n0, m) reverse
                             if self.debug_permute == 0:
                                 a,b,c,d = m_local, n0, n1, n2
                             elif self.debug_permute == 1:
@@ -413,6 +417,14 @@ class FmhaKernel:
                                 a,b,c,d = m_local, n1, n0, n2
                             elif self.debug_permute == 3:
                                 a,b,c,d = m_local, n0, n2, n1
+                            elif self.debug_permute == 4:
+                                a,b,c,d = n2, n0, n1, m_local
+                            elif self.debug_permute == 5:
+                                a,b,c,d = n1, n0, m_local, n2
+                            elif self.debug_permute == 6:
+                                a,b,c,d = n0, n1, n2, m_local
+                            elif self.debug_permute == 7:
+                                a,b,c,d = n2, n1, n0, m_local
                             else:
                                 a,b,c,d = m_local, n0, n1, n2