[compiler-rt] 06cc1ba - lsan: Document that ptrace_scope needs to be disabled.

[via llvm-commits]

Author: Peter Collingbourne
Date: 2026-06-10T09:48:03-07:00
New Revision: 06cc1baa0e0eced548df56e3f1fdb7df10e4fd86

URL: https://github.com/llvm/llvm-project/commit/06cc1baa0e0eced548df56e3f1fdb7df10e4fd86
DIFF: https://github.com/llvm/llvm-project/commit/06cc1baa0e0eced548df56e3f1fdb7df10e4fd86.diff

LOG: lsan: Document that ptrace_scope needs to be disabled.

As far as I'm aware, this is the reason why
http://45.33.8.238/linux/201640/step_9.txt is failing.

Reviewers: vitalybuka

Pull Request: https://github.com/llvm/llvm-project/pull/202838

Added: 
    

Modified: 
    compiler-rt/lib/lsan/lsan_common.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/lsan/lsan_common.cpp b/compiler-rt/lib/lsan/lsan_common.cpp
index 411291636d98f..0e8b013d73fe8 100644
--- a/compiler-rt/lib/lsan/lsan_common.cpp
+++ b/compiler-rt/lib/lsan/lsan_common.cpp
@@ -897,6 +897,9 @@ static bool CheckForLeaksOnce() {
       Report(
           "HINT: LeakSanitizer does not work under ptrace (strace, gdb, "
           "etc)\n");
+      Report(
+          "HINT: LeakSanitizer requires ptrace_scope to be disabled (e.g. echo "
+          "0 > /proc/sys/kernel/yama/ptrace_scope)\n");
       Die();
     }
     LeakReport leak_report;