From: Kevin O'Connor <kevin@koconnor.net>
Date: Tue, 5 Jan 2010 01:49:45 +0000 (-0500)
Subject: Add comment explaining why mptable is in low memory.
X-Git-Url: http://wien.tomnetworks.com/gitweb/?a=commitdiff_plain;h=48cf2320b79cbbf50f6e6196e1853613b50b462c;p=seabios.git

Add comment explaining why mptable is in low memory.
---

diff --git a/src/mptable.c b/src/mptable.c
index eba7d97..f65bbeb 100644
--- a/src/mptable.c
+++ b/src/mptable.c
@@ -179,7 +179,9 @@ mptable_init(void)
     config->length = length;
     config->checksum -= checksum(config, length);
 
-    // Allocate final memory locations
+    // Allocate final memory locations.  (In theory the config
+    // structure can go in high memory, but Linux kernels before
+    // v2.6.30 crash with that.)
     struct mptable_config_s *finalconfig = malloc_fseg(length);
     struct mptable_floating_s *floating = malloc_fseg(sizeof(*floating));
     if (!finalconfig || !floating) {