# HG changeset patch
# User Charles Manning <cdhmanning@gmail.com>
# Date 1272505156 -43200
# Node ID 4aa32dd45dc8cf0fe6c0599720ab8d924e7d4f26
# Parent  4cda507d908e4a78d6438acab43b4652d57968ab
yaffs: Add dump_stack() to YBUG to give more info.

This adds more info for debugging.

Signed-off-by: Charles Manning <cdhmanning@gmail.com>

diff --git a/yportenv.h b/yportenv.h
--- a/yportenv.h
+++ b/yportenv.h
@@ -71,8 +71,8 @@
 #define YFREE_ALT(x)   vfree(x)
 #define YMALLOC_DMA(x) YMALLOC(x)
 
-/* KR - added for use in scan so processes aren't blocked indefinitely. */
 #define YYIELD() schedule()
+#define Y_DUMP_STACK() dump_stack()
 
 #define YAFFS_ROOT_MODE			0755
 #define YAFFS_LOSTNFOUND_MODE		0700
@@ -153,12 +153,16 @@
 
 #endif
 
+#ifndef Y_DUMP_STACK
+#define Y_DUMP_STACK() do { } while (0)
+#endif
 
 #ifndef YBUG
 #define YBUG() do {\
 	T(YAFFS_TRACE_BUG,\
 		(TSTR("==>> yaffs bug: " __FILE__ " %d" TENDSTR),\
 		__LINE__));\
+	Y_DUMP_STACK();\
 } while (0)
 #endif