Log: more testing for the heap full segfault

1 files changed, 12 insertions, 11 deletions

diff --git a/log.md b/log.md
index c0b6b10..7750feb 100644
--- a/log.md
+++ b/log.md
@@ -186,18 +186,19 @@ fromto a b
 | a > b     = []
 | otherwise = [a:fromto (a+1) b]
 
-length :: [a] -> Int
-length xs = len 0 xs
-where
-	len :: Int [a] -> Int
-	len i []     = i
-	len i [_:xs] = len (i+1) xs
-
-hd :: [a] -> a
-hd [x:_] = x
-
-Start = let xs = fromto 1 100 in (length xs, hd xs)
+Start = fromto 1 25
 ```
 
 and running with `-h 1k`. The program segfaults rather than displaying a `Heap
 full` message.
+
+### 2016-10-09
+
+The above problem (no heap full message) only occurs with the copy/compacting
+garbage collector (`-gcc`), not with the marking/compacting garbage collector
+(`gcm`). The problem seems to be that when `collect_1` returns the value in
+`r6` is different than before.
+
+**Question**: It seems there are whole areas of the generated binaries that are
+all zero (like `file_table`, where you can expect that, but also e.g.
+`small_integers`, should this be zero as well?)