hey-
Got a segfault recently on ppc64 kexec with a system with 256Gb of ram.
Tracked it back to running over the end of the device tree buffer that we have
allocated. I can't find any docs on how big the device tree can legally be, so
for now I figure just upping its size is sufficient. Confirmed that this fixed
the segfault.
Signed-off-by: Neil Horman <nhorman at tuxdriver.com>
fs2dt.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/kexec/arch/ppc/fs2dt.c b/kexec/arch/ppc/fs2dt.c
index 238a3f2..2f0f937 100644
--- a/kexec/arch/ppc/fs2dt.c
+++ b/kexec/arch/ppc/fs2dt.c
@@ -33,7 +33,7 @@
#define MAXPATH 1024 /* max path name length */
#define NAMESPACE 16384 /* max bytes for property names */
-#define TREEWORDS 65536 /* max 32 bit words for properties */
+#define TREEWORDS 131070 /* max 32 bit words for properties */
#define MEMRESERVE 256 /* max number of reserved memory blks */
#define MAX_MEMORY_RANGES 1024
#define COMMAND_LINE_SIZE 512 /* from kernel */
