Add FD_SETSIZE warning to types.h

2001-08-31 22:12:32 +00:00 · 2001-08-31 22:12:32 +00:00 · 7e39632bc8
commit 7e39632bc8
parent 6a33d53c48
1 changed files with 3 additions and 0 deletions
--- a/sys/sys/types.h
+++ b/sys/sys/types.h
@ -178,6 +178,9 @@ typedef	_BSD_TIMER_T_	timer_t;
 * manipulate such bit fields (the filesystem macros use chars).
 * FD_SETSIZE may be defined by the user, but the default here should
 * be enough for most uses.
+ *
+ * WARNING!  temporary masks are stored on the kernel stack, do not increase
+ * this value past 2048 without fixing the issue in kern/sys_generic.c:select()
 */
 #ifndef	FD_SETSIZE
 #define	FD_SETSIZE	1024