Don't enable thread preemption during S3 resume vga option rom execution.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
(cherry picked from commit dd7527c6f51fff199285f1e1cdb3e8e16bd1781b)

diff --git a/src/stacks.c b/src/stacks.c
index 6bcb3194072f9bb7f147f460851a99d78be16c50..beccc0fa645c14aa3e9428df4f72717987bf3172 100644 (file)
--- a/src/stacks.c
+++ b/src/stacks.c
@@ -287,7 +287,7 @@ thread_init(void)
 int
 threads_during_optionroms(void)
 {
-    return CONFIG_THREADS && ThreadControl == 2;
+    return CONFIG_THREADS && ThreadControl == 2 && in_post();
 }
 
 // Switch to next thread stack.