https://github.com/felipepiovezan created 
https://github.com/llvm/llvm-project/pull/206444

Tests should not be printing an unbounded amount of data, especially when said 
data is the subject of corruption or misinterpretation by the printer (the 
formatter, in this case).

This test is currently failing on the matrix bots, with the result that close 
to 3GB of text is produced.

>From 3c5bef9e2a5ecb923737e6f2376e5771d9aac8ee Mon Sep 17 00:00:00 2001
From: Felipe de Azevedo Piovezan <[email protected]>
Date: Mon, 29 Jun 2026 10:57:41 +0100
Subject: [PATCH] [lldb] Reduce output of TestDataFormatterStdVBool

Tests should not be printing an unbounded amount of data, especially
when said data is the subject of corruption or misinterpretation by the
printer (the formatter, in this case).

This test is currently failing on the matrix bots, with the result that
close to 3GB of text is produced.
---
 .../generic/vbool/TestDataFormatterStdVBool.py               | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git 
a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/generic/vbool/TestDataFormatterStdVBool.py
 
b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/generic/vbool/TestDataFormatterStdVBool.py
index 3145f4e9bab76..5bcc010c763ba 100644
--- 
a/lldb/test/API/functionalities/data-formatter/data-formatter-stl/generic/vbool/TestDataFormatterStdVBool.py
+++ 
b/lldb/test/API/functionalities/data-formatter/data-formatter-stl/generic/vbool/TestDataFormatterStdVBool.py
@@ -44,11 +44,12 @@ def cleanup():
             self.runCmd("type synth clear", check=False)
             self.runCmd("settings set target.max-children-count 24", 
check=False)
 
+        self.runCmd("settings set target.max-children-count 128", check=False)
         # Execute the cleanup function during test case tear down.
         self.addTearDownHook(cleanup)
 
         self.expect(
-            "frame variable -A vBool",
+            "frame variable vBool",
             substrs=[
                 "size=73",
                 "[0] = false",
@@ -69,7 +70,7 @@ def cleanup():
         )
 
         self.expect(
-            "expr -A -- vBool",
+            "expr -- vBool",
             substrs=[
                 "size=73",
                 "[0] = false",

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