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-rw-r--r--doc/develop/py_testing.rst8
1 files changed, 8 insertions, 0 deletions
diff --git a/doc/develop/py_testing.rst b/doc/develop/py_testing.rst
index 52238ca54d3..06f919609b5 100644
--- a/doc/develop/py_testing.rst
+++ b/doc/develop/py_testing.rst
@@ -103,6 +103,14 @@ will be written to `${build_dir}/test-log.html`. This is best viewed in a web
browser, but may be read directly as plain text, perhaps with the aid of the
`html2text` utility.
+If sandbox crashes (e.g. with a segfault) you will see message like this::
+
+
+ test/py/u_boot_spawn.py:171: in expect
+ c = os.read(self.fd, 1024).decode(errors='replace')
+ E ValueError: U-Boot exited with signal 11 (Signals.SIGSEGV)
+
+
Controlling output
~~~~~~~~~~~~~~~~~~