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-rw-r--r--os/ports/GCC/ARMCMx/chcore_v7m.h8
-rw-r--r--readme.txt2
2 files changed, 7 insertions, 3 deletions
diff --git a/os/ports/GCC/ARMCMx/chcore_v7m.h b/os/ports/GCC/ARMCMx/chcore_v7m.h
index 4f1e88a48..0c8abcd41 100644
--- a/os/ports/GCC/ARMCMx/chcore_v7m.h
+++ b/os/ports/GCC/ARMCMx/chcore_v7m.h
@@ -92,7 +92,8 @@ struct intctx {
* the idle thread should take no more space than those reserved
* by @p INT_REQUIRED_STACK.
* @note In this port it is set to 4 because the idle thread does have
- * a stack frame when compiling without optimizations.
+ * a stack frame when compiling without optimizations. You may
+ * reduce this value to zero when compiling with optimizations.
*/
#ifndef IDLE_THREAD_STACK_SIZE
#define IDLE_THREAD_STACK_SIZE 4
@@ -105,10 +106,11 @@ struct intctx {
* This value can be zero on those architecture where there is a
* separate interrupt stack and the stack space between @p intctx and
* @p extctx is known to be zero.
- * @note This port requires no extra stack space for interrupt handling.
+ * @note In this port it is set to 8 because the function
+ * @p chSchDoRescheduleI() has a stack frame.
*/
#ifndef INT_REQUIRED_STACK
-#define INT_REQUIRED_STACK 0
+#define INT_REQUIRED_STACK 8
#endif
/**
diff --git a/readme.txt b/readme.txt
index 3cc797f12..691e13e5d 100644
--- a/readme.txt
+++ b/readme.txt
@@ -59,6 +59,8 @@
*****************************************************************************
*** 2.1.0 ***
+- FIX: Fixed insufficient stack space assigned to the idle thread in
+ Cortex-M3 port (bug 3019594)(backported in 2.0.1).
- FIX: Fixed missing check in chIQReadTimeout() and chIQWriteTimeout() (bug
3019158)(backported in 2.0.1).
- FIX: Fixed instability in Mutexes subsystem (bug 3019099)(backported