[compiler-rt] [NFC][asan] Try to deflake asan_lsan_deadlock test (PR #137718)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Vitaly Buka (vitalybuka)

<details>
<summary>Changes</summary>

10s looks not enough. With highly parallel test
execution on VMs it's very possible that Asan
report will have no enough time to produce output.

I can reproduce locally 1s is not always enough,
but likely my workstation is faster then buildbot.

Additionally, don't use puts/CHECK to validate
timeout. We can exit with 0 and it should violate
"not" expectation.


---
Full diff: https://github.com/llvm/llvm-project/pull/137718.diff


1 Files Affected:

- (modified) compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp (+2-5) 


``````````diff
diff --git a/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp b/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp
index 7ca07edbaf18c..7c2dbf27da3d4 100644
--- a/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp
+++ b/compiler-rt/test/asan/TestCases/asan_lsan_deadlock.cpp
@@ -36,11 +36,8 @@
 
 void Watchdog() {
   // Safety mechanism: Turn infinite deadlock into finite test failure
-  usleep(10000000);
-  // CHECK-NOT: Timeout! Deadlock detected.
-  puts("Timeout! Deadlock detected.");
-  fflush(stdout);
-  _exit(1);
+  sleep(60);
+  _exit(0);
 }
 
 int main(int argc, char **argv) {

``````````

</details>


https://github.com/llvm/llvm-project/pull/137718