From 7d27109da91753ce0ed031d0c7c3eb095b0b7fed Mon Sep 17 00:00:00 2001
From: dgp <dgp@users.sourceforge.net>
Date: Mon, 5 May 2014 17:18:51 +0000
Subject: Segfaulting test (backport of iortrans-5.11).

---
 tests/iogt.test | 22 +++++++++++++++++++++-
 1 file changed, 21 insertions(+), 1 deletion(-)

diff --git a/tests/iogt.test b/tests/iogt.test
index d81acd6..abe4246 100644
--- a/tests/iogt.test
+++ b/tests/iogt.test
@@ -251,7 +251,17 @@ proc id_torture {chan op data} {
 	clear_read   {;#ignore}
 	flush/write -
 	flush/read  {}
-	write       -
+	write       {
+	    global level
+	    if {$level} {
+		return
+	    }
+	    incr level
+	    testchannel unstack $chan
+	    testchannel transform $chan \
+		-command [namespace code [list id_torture $chan]]
+	    return $data
+	}
 	read        {
 	    testchannel unstack $chan
 	    testchannel transform $chan \
@@ -665,6 +675,16 @@ test iogt-2.4 {basic I/O, mixed trail} {testchannel} {
     close   $fh
     set x
 } {}
+test iogt-2.5 {basic I/O, mixed trail} {testchannel} {
+    set ::level 0
+    set fh [open $path(dummyout) w]
+    torture -attach $fh
+    puts -nonewline $fh abcdef
+    flush $fh
+    testchannel unstack $fh
+    close   $fh
+    set x
+} {}
 
 test iogt-3.0 {Tcl_Channel valid after stack/unstack, fevent handling} \
 	{testchannel unknownFailure} {
-- 
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