test: Append print_suppressions=0 to LSAN_OPTIONS, and suppress bitcoin-qt #35937

maflcko commented at 11:02 AM on August 8, 2026: member

(see commit msg for rationale and background).

To test, one should be able to use the cmake options such as -DCMAKE_C_COMPILER='clang' -DCMAKE_CXX_COMPILER='clang++' --preset=dev-mode -DBUILD_GUI=ON -DSANITIZERS=address on e.g. Fedora. Then see that the current suppressions file is insufficient, and also confirm that print_suppressions=0 is required.

test: Append print_suppressions=0 to LSAN_OPTIONS, and suppress bitcoin-qt

The print_suppressions=0 is required to avoid a CI failure when the
suppressions were used. E.g:

```
$ LSAN_OPTIONS="suppressions=$(pwd)/test/sanitizer_suppressions/lsan:print_suppressions=1" ./bld-cmake/test/functional/interface_gui.py
2026-08-08T10:53:45.864160Z TestFramework (INFO): PRNG seed is: 8358096631255493262
2026-08-08T10:53:45.914748Z TestFramework (INFO): Initializing test directory /tmp/bitcoin_func_test_5zx5343v
2026-08-08T10:53:47.029997Z TestFramework (INFO): Test that bitcoin-gui starts up and can be stopped via RPC
2026-08-08T10:53:47.431761Z TestFramework (ERROR): Unexpected exception:
  File "./test/functional/test_framework/test_node.py", line 534, in is_node_stopped
    raise AssertionError("Unexpected stderr {} != {}".format(stderr, expected_stderr))
AssertionError: Unexpected stderr -----------------------------------------------------
Suppressions used:
  count      bytes template
      2        181 bitcoin-qt
----------------------------------------------------- !=
```

The general suppression of the qt executables is required to avoid CI
failures for i386 builds. E.g:

```
 test  2026-08-05T08:54:08.370427Z TestFramework (ERROR): Unexpected exception:
      Traceback (most recent call last):
        File "/ci_container_base/ci/scratch_ ₿🧪_/build-i686-pc-linux-gnu/test/functional/interface_gui.py", line 34, in run_test
          self.stop_node(0)
          ~~~~~~~~~~~~~~^^^
        File "/ci_container_base/test/functional/test_framework/test_node.py", line 525, in is_node_stopped
          assert return_code in expected_ret_code, self._node_msg(
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      AssertionError: [node 0] Node returned unexpected exit code (1) vs ((0,)) when stopping

 node0 stderr =================================================================
==73449==ERROR: LeakSanitizer: detected memory leaks

Direct leak of 386 byte(s) in 17 object(s) allocated from:
    #0 0x5df28a2d in malloc (/ci_container_base/ci/scratch_ ₿🧪_/build-i686-pc-linux-gnu/bin/bitcoin-qt+0x1d0da2d) (BuildId: 496a5df531df278fe395724ae917f266331b3f81)
    #1 0xee03c1d1  (<unknown module>)

Indirect leak of 12 byte(s) in 1 object(s) allocated from:
    #0 0x5df28a2d in malloc (/ci_container_base/ci/scratch_ ₿🧪_/build-i686-pc-linux-gnu/bin/bitcoin-qt+0x1d0da2d) (BuildId: 496a5df531df278fe395724ae917f266331b3f81)
    #1 0xee03c1d1  (<unknown module>)

SUMMARY: AddressSanitizer: 398 byte(s) leaked in 18 allocation(s).
```

fad9ab714b

DrahtBot added the label Tests on Aug 8, 2026