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From b9340240764bf209fcfbc342ebd0d82947157a15 Mon Sep 17 00:00:00 2001
From: Mattias Ellert <mattias.ellert@physics.uu.se>
Date: Thu, 20 Nov 2025 09:54:34 +0100
Subject: [PATCH] [Tests] Avoid test segfault on 32 bit architectures
---
tests/XrdCl/XrdClFileTest.cc | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/tests/XrdCl/XrdClFileTest.cc b/tests/XrdCl/XrdClFileTest.cc
index f1ffe64b6..98ca7b543 100644
--- a/tests/XrdCl/XrdClFileTest.cc
+++ b/tests/XrdCl/XrdClFileTest.cc
@@ -584,6 +584,16 @@ void FileTest::VectorReadTest()
constexpr size_t ior_max = 2*1024*1024 - 16;
char *buffer3 = static_cast<char*>(malloc(0x80000000ul)); /* 2 GB */
+ // The requested memory allocation size above (0x80000000) is larger
+ // than the maximum allowed memory allocation size on a 32 bit Linux
+ // system (0x7FFFFFFF). On these systems the allocation will fail
+ // and a NULL pointer will be returned, resulting in a segmentation
+ // fault when the test code tries to writ to the allocated memory.
+ //
+ // Skip the test in such cases instead.
+
+ if (buffer3) {
+
for(size_t i = 0; i < iov_max; ++i)
chunkList3.emplace_back(i*ior_max, ior_max);
@@ -608,6 +618,8 @@ void FileTest::VectorReadTest()
free(buffer3);
delete info;
+ }
+
// local vread2
info = 0;
EXPECT_XRDST_OK( f.VectorRead( chunkList2, buffer2Comp, info ) );
--
2.51.1
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