Fix issues with reading back iobuf

SpiNNakerManchester · Mar 1, 2023 · 28c243b · 28c243b
1 parent 73acb07
commit 28c243b
Showing 1 changed file with 14 additions and 1 deletion.
diff --git a/spinnman/processes/read_iobuf_process.py b/spinnman/processes/read_iobuf_process.py
@@ -25,6 +25,12 @@
 _ONE_WORD = struct.Struct("<I")
 _FIRST_IOBUF = struct.Struct("<I8xI")
 
+# The maximum value allowed in ASCII
+_MAX_ASCII = 127
+
+# What to replace junk characters with (?)
+_REPLACE_VALUE = 63
+
 
 class ReadIOBufProcess(AbstractMultiConnectionProcess):
     """ A process for reading IOBUF memory (mostly log messages) from a\
@@ -174,5 +180,12 @@ def read_iobuf(self, iobuf_size, core_subsets):
             for p in core_subset.processor_ids:
                 iobuf = ""
                 for item in self._iobuf[x, y, p].values():
-                    iobuf += item.decode(_ENCODING)
+                    try:
+                        value = item.decode(_ENCODING)
+                        iobuf += value
+                    except UnicodeDecodeError:
+                        for i in range(len(item)):
+                            if item[i] > _MAX_ASCII:
+                                item[i] = _REPLACE_VALUE
+                        iobuf += item.decode(_ENCODING)
                 yield IOBuffer(x, y, p, iobuf)