diff --git a/.travis.yml b/.travis.yml
index b5ec7e0cdf..36fb3a1b76 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -215,8 +215,9 @@ script:
   - if [[ "$SKIP_MAKE_CHECK" == "" ]]; then make check; fi
   - if [[ "$DISTCHECK" != "" ]]; then make distcheck DISTCHECK_CONFIGURE_FLAGS="$CONFIGURE_FLAGS"; fi
   - if [[ "$CHUTNEY" != "" ]]; then make test-network-all; fi
-  ## Diagnostic for bug 29437: kill stem if it hangs for 15 minutes
-  - if [[ "$TEST_STEM" != "" ]]; then make src/app/tor; timelimit -p -t 540 -s USR1 -T 30 -S ABRT python3 "$STEM_SOURCE_DIR"/run_tests.py --tor src/app/tor --integ --log notice --target RUN_ALL; fi
+  ## Diagnostic for bug 29437: kill stem if it hangs for 9.5 minutes
+  ## Travis will kill the job after 10 minutes with no output
+  - if [[ "$TEST_STEM" != "" ]]; then make src/app/tor; timelimit -p -t 540 -s USR1 -T 30 -S ABRT python3 "$STEM_SOURCE_DIR"/run_tests.py --tor src/app/tor --integ --test control.controller --test control.base_controller --test process --log TRACE --log-file stem.log; fi
   ## If this build was one that produced coverage, upload it.
   - if [[ "$COVERAGE_OPTIONS" != "" ]]; then coveralls -b . --exclude src/test --exclude src/trunnel --gcov-options '\-p' || echo "Coverage failed"; fi
 
@@ -230,7 +231,8 @@ after_failure:
   - if [[ "$DISTCHECK" != "" ]]; then make show-distdir-testlog || echo "make failed"; fi
   - if [[ "$DISTCHECK" != "" ]]; then make show-distdir-core || echo "make failed"; fi
   - if [[ "$CHUTNEY" != "" ]]; then ls test_network_log || echo "ls failed"; cat test_network_log/* || echo "cat failed"; fi
-  - if [[ "$TEST_STEM" != "" ]]; then cat "$STEM_SOURCE_DIR"/test/data/tor_log || echo "cat failed"; fi
+  - if [[ "$TEST_STEM" != "" ]]; then tail -1000 "$STEM_SOURCE_DIR"/test/data/tor_log || echo "tail failed"; fi
+  - if [[ "$TEST_STEM" != "" ]]; then grep -v "SocketClosed" stem.log | tail -1000 || echo "grep | tail failed"; fi
 
 before_cache:
   ## Delete all gcov files.
diff --git a/changes/ticket30591 b/changes/ticket30591
new file mode 100644
index 0000000000..f97c024009
--- /dev/null
+++ b/changes/ticket30591
@@ -0,0 +1,3 @@
+  o Testing (continuous integration):
+    - In Travis, make stem log a controller trace to the console. And tail
+      stem's tor log after failure. Closes ticket 30591.
diff --git a/changes/ticket30694 b/changes/ticket30694
new file mode 100644
index 0000000000..70dbf6481a
--- /dev/null
+++ b/changes/ticket30694
@@ -0,0 +1,3 @@
+  o Testing (continuous integration):
+    - In Travis, only run the stem tests that use a tor binary.
+      Closes ticket 30694.