diff --git a/tests/queries/0_stateless/00984_parser_stack_overflow.sh b/tests/queries/0_stateless/00984_parser_stack_overflow.sh
index 7c4a6336a51..168ef155d9b 100755
--- a/tests/queries/0_stateless/00984_parser_stack_overflow.sh
+++ b/tests/queries/0_stateless/00984_parser_stack_overflow.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # Tags: no-tsan
-# FIXME should work with tsan
+# FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 # Such a huge timeout mostly for debug build.
 CLICKHOUSE_CURL_TIMEOUT=60
diff --git a/tests/queries/0_stateless/01172_transaction_counters.sql b/tests/queries/0_stateless/01172_transaction_counters.sql
index 83bad35c40b..8e04b6c89bd 100644
--- a/tests/queries/0_stateless/01172_transaction_counters.sql
+++ b/tests/queries/0_stateless/01172_transaction_counters.sql
@@ -1,6 +1,6 @@
 -- Tags: no-s3-storage, no-tsan
 -- FIXME this test fails with S3 due to a bug in DiskCacheWrapper
--- FIXME should work with tsan
+-- FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 drop table if exists txn_counters;
 
 create table txn_counters (n Int64, creation_tid DEFAULT transactionID()) engine=MergeTree order by n;
diff --git a/tests/queries/0_stateless/01183_custom_separated_format_http.sh b/tests/queries/0_stateless/01183_custom_separated_format_http.sh
index 0aa750a171f..744cf0c08bd 100755
--- a/tests/queries/0_stateless/01183_custom_separated_format_http.sh
+++ b/tests/queries/0_stateless/01183_custom_separated_format_http.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # Tags: no-tsan
-# FIXME should work with tsan
+# FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # shellcheck source=../shell_config.sh
diff --git a/tests/queries/0_stateless/01184_long_insert_values_huge_strings.sh b/tests/queries/0_stateless/01184_long_insert_values_huge_strings.sh
index 9c3a2d295f7..f4bad961f21 100755
--- a/tests/queries/0_stateless/01184_long_insert_values_huge_strings.sh
+++ b/tests/queries/0_stateless/01184_long_insert_values_huge_strings.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # Tags: long, no-tsan
-# FIXME should work with tsan
+# FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # shellcheck source=../shell_config.sh
diff --git a/tests/queries/0_stateless/01651_lc_insert_tiny_log.sql b/tests/queries/0_stateless/01651_lc_insert_tiny_log.sql
index 15baa88ec4e..ec2a1850594 100644
--- a/tests/queries/0_stateless/01651_lc_insert_tiny_log.sql
+++ b/tests/queries/0_stateless/01651_lc_insert_tiny_log.sql
@@ -1,5 +1,5 @@
 -- Tags: no-tsan
--- FIXME should work with tsan
+-- FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 drop table if exists perf_lc_num;
 
diff --git a/tests/queries/0_stateless/01746_long_zstd_http_compression_json_format.sh b/tests/queries/0_stateless/01746_long_zstd_http_compression_json_format.sh
index e198adc2dc6..16f5211f012 100755
--- a/tests/queries/0_stateless/01746_long_zstd_http_compression_json_format.sh
+++ b/tests/queries/0_stateless/01746_long_zstd_http_compression_json_format.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # Tags: long, no-fasttest, no-tsan
-# FIXME should work with tsan
+# FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # shellcheck source=../shell_config.sh
diff --git a/tests/queries/0_stateless/01926_order_by_desc_limit.sql b/tests/queries/0_stateless/01926_order_by_desc_limit.sql
index 785a2e10ee3..223dbf70fc4 100644
--- a/tests/queries/0_stateless/01926_order_by_desc_limit.sql
+++ b/tests/queries/0_stateless/01926_order_by_desc_limit.sql
@@ -1,5 +1,5 @@
 -- Tags: no-random-settings, no-tsan
--- FIXME should work with tsan
+-- FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 DROP TABLE IF EXISTS order_by_desc;
 
diff --git a/tests/queries/1_stateful/00159_parallel_formatting_http.sh b/tests/queries/1_stateful/00159_parallel_formatting_http.sh
index b7382c5f491..7b949cf23e6 100755
--- a/tests/queries/1_stateful/00159_parallel_formatting_http.sh
+++ b/tests/queries/1_stateful/00159_parallel_formatting_http.sh
@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # Tags: no-tsan
-# FIXME should work with tsan
+# FIXME It became flaky after upgrading to llvm-14 due to obscure freezes in tsan
 
 CURDIR=$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)
 # shellcheck source=../shell_config.sh