[UNIKRAFT PATCH] lib/uksched: Add to error message for stack alloc failure.

[Alexander Jung <a.jung@xxxxxxxxxxx>]

From: Alexander Jung <alexander.jung@xxxxxxxxx>

The reason for failing to allocate the stack is caused by lack of
memory.  This patch adds this information to this error message in
order to ease usage of Unikraft as it is a common question which
requires troubleshooting.

Signed-off-by: Alexander Jung <alexander.jung@xxxxxxxxx>
---
 lib/uksched/sched.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/uksched/sched.c b/lib/uksched/sched.c
index ef195c3..4b8e149 100644
--- a/lib/uksched/sched.c
+++ b/lib/uksched/sched.c
@@ -143,7 +143,7 @@ static void *create_stack(struct uk_alloc *allocator)
 
        if (uk_posix_memalign(allocator, &stack,
                              STACK_SIZE, STACK_SIZE) != 0) {
-               uk_pr_err("Failed to allocate thread stack\n");
+               uk_pr_err("Failed to allocate thread stack: Not enough 
memory\n");
                return NULL;
        }
 
-- 
2.20.1