* src/bytecode.c (exec_byte_code): Better quitcounter reset value.

This value forces a quit check at the next backward branch, to avoid
rare situations being hard to interrupt.
Suggested by Pip Cet.

1 files changed, 3 insertions, 1 deletions

diff --git a/src/bytecode.c b/src/bytecode.c
index 318b96a12be..424d00f20ec 100644
--- a/src/bytecode.c
+++ b/src/bytecode.c
@@ -959,7 +959,9 @@ exec_byte_code (Lisp_Object fun, ptrdiff_t args_template,
 
             if (sys_setjmp (c->jmp))
               {
-                quitcounter = 1;   /* no need to restore old value */
+                /* No need to restore old quitcounter; just check at the next
+                   backward branch.  */
+                quitcounter = (unsigned char)-1;
                 struct handler *c = handlerlist;
                 handlerlist = c->next;
                 top = c->bytecode_top;