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envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=40.107.76.102; envelope-from=alxndr@bu.edu; helo=NAM02-CY1-obe.outbound.protection.outlook.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/13 11:44:43 X-ACL-Warn: Detected OS = Windows NT kernel [generic] [fuzzy] X-Spam_score_int: -14 X-Spam_score: -1.5 X-Spam_bar: - X-Spam_report: (-1.5 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.44, MSGID_FROM_MTA_HEADER=0.001, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Laurent Vivier , Thomas Huth , Alexander Bulekov , Bandan Das , Stefan Hajnoczi , Paolo Bonzini , dimastep@yandex-team.ru Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: pass (identity @bushare.onmicrosoft.com) Content-Type: text/plain; charset="utf-8" With the fuzzer, we never call main_loop_should_exit, since we manually call main_loop_wait. This means that the only way to terminate the fuzzer is with SIGKILL. Disable the signal handlers, so there are reasonable ways to terminate the fuzzer and use atexit() to clean-up after the fuzzer. Signed-off-by: Alexander Bulekov Reviewed-by: Darren Kenny --- tests/qtest/fuzz/fuzz.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/tests/qtest/fuzz/fuzz.c b/tests/qtest/fuzz/fuzz.c index d926c490c5..eb0070437f 100644 --- a/tests/qtest/fuzz/fuzz.c +++ b/tests/qtest/fuzz/fuzz.c @@ -217,5 +217,13 @@ int LLVMFuzzerInitialize(int *argc, char ***argv, char= ***envp) /* re-enable the rcu atfork, which was previously disabled in qemu_ini= t */ rcu_enable_atfork(); =20 + /* + * Disable QEMU's signal handlers, since we manually control the main_= loop, + * and don't check for main_loop_should_exit + */ + signal(SIGINT, SIG_DFL); + signal(SIGHUP, SIG_DFL); + signal(SIGTERM, SIG_DFL); + return 0; } --=20 2.28.0