Dump kernel work in limited memory space and makedumpfile buffers
have to fit to empty memory due to not be killed with OOM-killer.
Signed-off-by: Maxim Uvarov <maxim.uvarov at oracle.com>
---
makedumpfile.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/makedumpfile.c b/makedumpfile.c
index b42565c..52606ab 100644
--- a/makedumpfile.c
+++ b/makedumpfile.c
@@ -2996,7 +2996,7 @@ out:
/*
* Truncate the buffer size to free memory size.
*/
- free_memory = get_free_memory_size();
+ free_memory = (get_free_memory_size() / info->num_dumpfile);
if (info->bufsize_cyclic > free_memory) {
MSG("Specified buffer size is larger than free memory.\n");
MSG("The buffer size for the cyclic mode will ");
@@ -8548,6 +8548,8 @@ calculate_cyclic_buffer_size(void) {
*/
free_size = get_free_memory_size() * 0.4;
needed_size = (info->max_mapnr * 2) / BITPERBYTE;
+ /* if --split was specified cyclic buffer allocated per dump file */
+ needed_size /= info->num_dumpfile;
info->bufsize_cyclic = (free_size <= needed_size) ? free_size : needed_size;
--
1.7.9.5
