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-rw-r--r--cpukit/score/include/rtems/score/interr.h5
1 files changed, 4 insertions, 1 deletions
diff --git a/cpukit/score/include/rtems/score/interr.h b/cpukit/score/include/rtems/score/interr.h
index 2f5add4b54..2ee7109cf2 100644
--- a/cpukit/score/include/rtems/score/interr.h
+++ b/cpukit/score/include/rtems/score/interr.h
@@ -186,7 +186,10 @@ extern Internal_errors_Information _Internal_errors_What_happened;
* - valid read-only data.
*
* For the initial extensions the read-write data (including BSS segment) is
- * not required.
+ * not required on single processor configurations. On SMP configurations
+ * however the read-write data must be initialized since this function must
+ * determine the state of the other processors and request them to shut-down if
+ * necessary.
*
* Non-initial extensions require in addition valid read-write data. The BSP
* may install an initial extension that performs a system reset. In this case