diff --git a/t/t1092-sparse-checkout-compatibility.sh b/t/t1092-sparse-checkout-compatibility.sh
index 0fe5b5f482..71b45bff44 100755
--- a/t/t1092-sparse-checkout-compatibility.sh
+++ b/t/t1092-sparse-checkout-compatibility.sh
@@ -784,7 +784,7 @@ test_expect_success 'submodule handling' '
 test_expect_success 'sparse-index is expanded and converted back' '
 	init_repos &&
 
-	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
 		git -C sparse-index reset -- folder1/a &&
 	test_region index convert_to_sparse trace2.txt &&
 	test_region index ensure_full_index trace2.txt
@@ -829,10 +829,10 @@ ensure_not_expanded () {
 	then
 		shift &&
 		test_must_fail env \
-			GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+			GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
 			git -C sparse-index "$@" || return 1
 	else
-		GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+		GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
 			git -C sparse-index "$@" || return 1
 	fi &&
 	test_region ! index ensure_full_index trace2.txt
diff --git a/t/t4216-log-bloom.sh b/t/t4216-log-bloom.sh
index 50f206db55..8018c12a6a 100755
--- a/t/t4216-log-bloom.sh
+++ b/t/t4216-log-bloom.sh
@@ -175,13 +175,11 @@ test_expect_success 'persist filter settings' '
 	test_when_finished rm -rf .git/objects/info/commit-graph* &&
 	rm -rf .git/objects/info/commit-graph* &&
 	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
-		GIT_TRACE2_EVENT_NESTING=5 \
 		GIT_TEST_BLOOM_SETTINGS_NUM_HASHES=9 \
 		GIT_TEST_BLOOM_SETTINGS_BITS_PER_ENTRY=15 \
 		git commit-graph write --reachable --changed-paths &&
 	grep "{\"hash_version\":1,\"num_hashes\":9,\"bits_per_entry\":15,\"max_changed_paths\":512" trace2.txt &&
 	GIT_TRACE2_EVENT="$(pwd)/trace2-auto.txt" \
-		GIT_TRACE2_EVENT_NESTING=5 \
 		git commit-graph write --reachable --changed-paths &&
 	grep "{\"hash_version\":1,\"num_hashes\":9,\"bits_per_entry\":15,\"max_changed_paths\":512" trace2-auto.txt
 '
diff --git a/t/t5310-pack-bitmaps.sh b/t/t5310-pack-bitmaps.sh
index dcf03d324a..9104e84262 100755
--- a/t/t5310-pack-bitmaps.sh
+++ b/t/t5310-pack-bitmaps.sh
@@ -35,7 +35,7 @@ test_expect_success 'setup writing bitmaps during repack' '
 '
 
 test_expect_success 'full repack creates bitmaps' '
-	GIT_TRACE2_EVENT_NESTING=4 GIT_TRACE2_EVENT="$(pwd)/trace" \
+	GIT_TRACE2_EVENT="$(pwd)/trace" \
 		git repack -ad &&
 	ls .git/objects/pack/ | grep bitmap >output &&
 	test_line_count = 1 output &&
diff --git a/t/t5705-session-id-in-capabilities.sh b/t/t5705-session-id-in-capabilities.sh
index eb8c79aafd..ed38c76c29 100755
--- a/t/t5705-session-id-in-capabilities.sh
+++ b/t/t5705-session-id-in-capabilities.sh
@@ -32,7 +32,6 @@ do
 		test_when_finished "git -C local push --delete origin new-branch" &&
 		cp -r "$LOCAL_PRISTINE" local &&
 		git -C local pull --no-rebase origin &&
-		GIT_TRACE2_EVENT_NESTING=5 \
 		GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
 		git -c protocol.version=$PROTO -C local push \
 			--receive-pack "GIT_TRACE2_EVENT=\"$(pwd)/tr2-server-events\" git-receive-pack" \
@@ -65,7 +64,6 @@ do
 		test_when_finished "git -C local push --delete origin new-branch" &&
 		cp -r "$LOCAL_PRISTINE" local &&
 		git -C local pull --no-rebase origin &&
-		GIT_TRACE2_EVENT_NESTING=5 \
 		GIT_TRACE2_EVENT="$(pwd)/tr2-client-events" \
 		git -c protocol.version=$PROTO -C local push \
 			--receive-pack "GIT_TRACE2_EVENT=\"$(pwd)/tr2-server-events\" git-receive-pack" \
diff --git a/t/t7519-status-fsmonitor.sh b/t/t7519-status-fsmonitor.sh
index f488d930df..a5e2233cb1 100755
--- a/t/t7519-status-fsmonitor.sh
+++ b/t/t7519-status-fsmonitor.sh
@@ -390,7 +390,7 @@ test_expect_success 'status succeeds after staging/unstaging' '
 # during a call to 'git status'. Otherwise, we verify that we _do_ call it.
 check_sparse_index_behavior () {
 	git -C full status --porcelain=v2 >expect &&
-	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" GIT_TRACE2_EVENT_NESTING=10 \
+	GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
 		git -C sparse status --porcelain=v2 >actual &&
 	test_region $1 index ensure_full_index trace2.txt &&
 	test_region fsm_hook query trace2.txt &&
diff --git a/t/test-lib.sh b/t/test-lib.sh
index b265c0a1fc..d1750bf615 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -476,6 +476,13 @@ export GIT_TEST_MERGE_ALGORITHM
 GIT_TRACE_BARE=1
 export GIT_TRACE_BARE
 
+# Some tests scan the GIT_TRACE2_EVENT feed for events, but the
+# default depth is 2, which frequently causes issues when the
+# events are wrapped in new regions. Set it to a sufficiently
+# large depth to avoid custom changes in the test suite.
+GIT_TRACE2_EVENT_NESTING=100
+export GIT_TRACE2_EVENT_NESTING
+
 # Use specific version of the index file format
 if test -n "${GIT_TEST_INDEX_VERSION:+isset}"
 then