tests: adjust csplit VM limit

* tests/misc/csplit-heap.sh: More memory is required to avoid
a false failure on some systems.  Noticed with musl libc
with bash as the shell.  This is confirmed to still easily
trigger with the original memory leak being tested.
Addresses https://bugs.gnu.org/62542

diff --git a/tests/misc/csplit-heap.sh b/tests/misc/csplit-heap.sh
index 2ba3c4500959c4b19f1ddf14e1fe3c15525237a2..36b286b930fd9bf5d7da0b6638f1e15b027ab2f6 100755 (executable)
--- a/tests/misc/csplit-heap.sh
+++ b/tests/misc/csplit-heap.sh
@@ -25,7 +25,7 @@ vm=$(get_min_ulimit_v_ csplit -z f %n%1) \
   || skip_ "this shell lacks ulimit support"
 
 (
- ulimit -v $(($vm + 1000)) \
+ ulimit -v $(($vm + 4000)) \
    && { yes | head -n2500000; echo n; } | csplit -z - %n%1
 ) || fail=1