ash: hopefully close bug 4324. With testcase.

function                                             old     new   delta
evaltree                                             621     869    +248
popstring                                            134     140      +6

2 files changed, 21 insertions, 0 deletions

diff --git a/shell/ash_test/ash-signals/signal2.right b/shell/ash_test/ash-signals/signal2.right
new file mode 100644
index 0000000..96d2d6a
--- /dev/null
+++ b/shell/ash_test/ash-signals/signal2.right
@@ -0,0 +1,3 @@
+sleeping
+child exits as expected
+parent exits
diff --git a/shell/ash_test/ash-signals/signal2.tests b/shell/ash_test/ash-signals/signal2.tests
new file mode 100755
index 0000000..04f981c
--- /dev/null
+++ b/shell/ash_test/ash-signals/signal2.tests
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+$THIS_SH -c '
+cleanup() {
+    echo "child exits as expected"
+    exit
+}
+trap cleanup HUP
+echo "sleeping"
+sleep 1
+echo "BAD exit from child!"
+' &
+
+child=$!
+sleep 0.1 # let child install handler first
+kill -HUP $child
+wait
+echo "parent exits"