With ELF extended numbering 16-bit bound is not hard limit any more.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
---
include/linux/sched/sysctl.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/include/linux/sched/sysctl.h b/include/linux/sched/sysctl.h
index 8045a554cafb..552a2db8b1f5 100644
--- a/include/linux/sched/sysctl.h
+++ b/include/linux/sched/sysctl.h
@@ -25,6 +25,10 @@ enum { sysctl_hung_task_timeout_secs = 0 };
* Because the kernel adds some informative sections to a image of program at
* generating coredump, we need some margin. The number of extra sections is
* 1-3 now and depends on arch. We use "5" as safe margin, here.
+ *
+ * ELF extended numbering allows more then 65535 sections, so 16-bit bound is
+ * not hard limit any more. Although some userspace tools can be surprised by
+ * that.
*/
#define MAPCOUNT_ELF_CORE_MARGIN (5)
#define DEFAULT_MAX_MAP_COUNT (USHRT_MAX - MAPCOUNT_ELF_CORE_MARGIN)
--
2.0.0.rc0
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