This is a code bug. In initialize_2nd_bitmap_cyclic pfn_memhole is
calculated, however it's not initialized before that. If an available
pfn_memhole is wanted after get_num_dumpable_cyclic invocation,
initializing pfn_memhole in get_num_dumpable_cyclic is necessary.
Signed-off-by: Baoquan He <bhe at redhat.com>
---
makedumpfile.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/makedumpfile.c b/makedumpfile.c
index b4b6eca..a01703e 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -5651,6 +5651,8 @@ get_num_dumpable_cyclic(void)
mdf_pfn_t pfn, num_dumpable=0;
struct cycle cycle = {0};
+ pfn_memhole = info->max_mapnr;
+
for_each_cycle(0, info->max_mapnr, &cycle)
{
if (!exclude_unnecessary_pages_cyclic(&cycle))
--
1.8.5.3
