commit a74240b311a442acedb186d30f70edfe847de213
from: isaac <isaac@server.fugu.farm>
date: Sat Jun 27 00:48:39 2026 UTC

regress: tear down child processes on timeout instead of orphaning

chat_test and compact_test fork a stub TLS server + the full fugu, then set
alarm(90).  on_alarm only _exit(97)d, orphaning both children -- the stub has
no timeout of its own and blocks forever in accept()/tls_read(), so every
stalled run leaked processes that ran until killed by hand.  Track the child
pids and SIGKILL them from on_alarm before exiting; also give the stub child
its own alarm(60) + default SIGALRM so it self-terminates if orphaned by any
other path.  Verified: a forced stall (FUGU_BIN=/bin/cat) now leaves no live
orphans.

commit - c359dadcc35ab09cd72a45d0e87d4e5971efdb5b
commit + a74240b311a442acedb186d30f70edfe847de213
blob - e1ae12a6ec0886e822d476c1a5790cde4d563aeb
blob + 9eed4da39c55a42fc7a9ac987a817224725ab712
--- regress/chat/chat_test.c
+++ regress/chat/chat_test.c
@@ -193,11 +193,19 @@ write_config(const char *home)
 	fclose(fp);
 }
 
+/* Child pids, so the timeout handler can tear them down instead of orphaning. */
+static volatile sig_atomic_t	stub_pid = -1;
+static volatile sig_atomic_t	fugu_pid = -1;
+
 static void
 on_alarm(int sig)
 {
 	(void)sig;
 	dprintf(STDERR_FILENO, "chat_test: TIMED OUT\n");
+	if (fugu_pid > 0)
+		kill((pid_t)fugu_pid, SIGKILL);
+	if (stub_pid > 0)
+		kill((pid_t)stub_pid, SIGKILL);
 	_exit(97);
 }
 
@@ -248,9 +256,12 @@ main(int argc, char *argv[])
 	if ((sp = fork()) == -1)
 		err(1, "fork");
 	if (sp == 0) {
+		signal(SIGALRM, SIG_DFL);	/* self-terminate if we block */
+		alarm(60);
 		stub_server(lfd, argv[1], argv[2]);
 		_exit(0);
 	}
+	stub_pid = sp;
 	close(lfd);
 
 	if (pipe(in_pipe) == -1 || pipe(out_pipe) == -1)
@@ -279,6 +290,7 @@ main(int argc, char *argv[])
 		execl(fugu_bin, fugu_bin, (char *)NULL);
 		_exit(127);
 	}
+	fugu_pid = fp;
 	close(in_pipe[0]);
 	close(out_pipe[1]);
 
blob - 38bf6abb445f3e36e9c450325af2af19a4317b52
blob + a63a5886ae0201616fa6f418980de563dc589aa8
--- regress/compact/compact_test.c
+++ regress/compact/compact_test.c
@@ -240,11 +240,19 @@ rm_sessions(const char *home)
 	rmdir(path);
 }
 
+/* Child pids, so the timeout handler can tear them down instead of orphaning. */
+static volatile sig_atomic_t	stub_pid = -1;
+static volatile sig_atomic_t	fugu_pid = -1;
+
 static void
 on_alarm(int sig)
 {
 	(void)sig;
 	dprintf(STDERR_FILENO, "compact_test: TIMED OUT\n");
+	if (fugu_pid > 0)
+		kill((pid_t)fugu_pid, SIGKILL);
+	if (stub_pid > 0)
+		kill((pid_t)stub_pid, SIGKILL);
 	_exit(97);
 }
 
@@ -311,9 +319,12 @@ main(int argc, char *argv[])
 	if ((sp = fork()) == -1)
 		err(1, "fork");
 	if (sp == 0) {
+		signal(SIGALRM, SIG_DFL);	/* self-terminate if we block */
+		alarm(60);
 		stub_server(lfd, argv[1], argv[2]);
 		_exit(0);
 	}
+	stub_pid = sp;
 	close(lfd);
 
 	if (pipe(in_pipe) == -1 || pipe(out_pipe) == -1)
@@ -342,6 +353,7 @@ main(int argc, char *argv[])
 		execl(fugu_bin, fugu_bin, (char *)NULL);
 		_exit(127);
 	}
+	fugu_pid = fp;
 	close(in_pipe[0]);
 	close(out_pipe[1]);