diff --git a/lldb/test/tools/lldb-mi/TestMiBreakpoint.py b/lldb/test/tools/lldb-mi/TestMiBreakpoint.py
index 497ddc4a0316..5a922cbdbd1c 100644
--- a/lldb/test/tools/lldb-mi/TestMiBreakpoint.py
+++ b/lldb/test/tools/lldb-mi/TestMiBreakpoint.py
@@ -10,6 +10,8 @@ class MiBreakpointTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_pendbreakonsym(self):
         """Test that 'lldb-mi --interpreter' works for pending symbol breakpoints."""
 
@@ -31,6 +33,8 @@ class MiBreakpointTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_pendbreakonsrc(self):
         """Test that 'lldb-mi --interpreter' works for pending source breakpoints."""
 
@@ -55,6 +59,8 @@ class MiBreakpointTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_breakpoints(self):
         """Test that 'lldb-mi --interpreter' works for breakpoints."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiData.py b/lldb/test/tools/lldb-mi/TestMiData.py
index d01b1c4dd327..944242117adf 100644
--- a/lldb/test/tools/lldb-mi/TestMiData.py
+++ b/lldb/test/tools/lldb-mi/TestMiData.py
@@ -10,6 +10,8 @@ class MiDataTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_data_disassemble(self):
         """Test that 'lldb-mi --interpreter' works for -data-disassemble."""
 
@@ -37,6 +39,8 @@ class MiDataTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_data_read_memory_bytes(self):
         """Test that 'lldb-mi --interpreter' works for -data-read-memory-bytes."""
 
@@ -65,6 +69,8 @@ class MiDataTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_data_list_register_names(self):
         """Test that 'lldb-mi --interpreter' works for -data-list-register-names."""
 
@@ -91,6 +97,8 @@ class MiDataTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_data_list_register_values(self):
         """Test that 'lldb-mi --interpreter' works for -data-list-register-values."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiExec.py b/lldb/test/tools/lldb-mi/TestMiExec.py
index e175c8b0c903..a8ea46cd98f1 100644
--- a/lldb/test/tools/lldb-mi/TestMiExec.py
+++ b/lldb/test/tools/lldb-mi/TestMiExec.py
@@ -105,6 +105,8 @@ class MiExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_exec_arguments_reset(self):
         """Test that 'lldb-mi --interpreter' can reset previously set args using -exec-arguments."""
 
@@ -133,6 +135,8 @@ class MiExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_exec_next(self):
         """Test that 'lldb-mi --interpreter' works for stepping."""
 
@@ -184,6 +188,8 @@ class MiExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_exec_next_instruction(self):
         """Test that 'lldb-mi --interpreter' works for instruction stepping."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiExit.py b/lldb/test/tools/lldb-mi/TestMiExit.py
index a8e6c8a235c9..e69edfe3d288 100644
--- a/lldb/test/tools/lldb-mi/TestMiExit.py
+++ b/lldb/test/tools/lldb-mi/TestMiExit.py
@@ -10,6 +10,8 @@ class MiExitTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_gdbexit(self):
         """Test that '-gdb-exit' terminates debug session and exits."""
 
@@ -34,6 +36,8 @@ class MiExitTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_quit(self):
         """Test that 'quit' exits immediately."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiInterpreterExec.py b/lldb/test/tools/lldb-mi/TestMiInterpreterExec.py
index ab363e8b74a3..c27e8c19061c 100644
--- a/lldb/test/tools/lldb-mi/TestMiInterpreterExec.py
+++ b/lldb/test/tools/lldb-mi/TestMiInterpreterExec.py
@@ -29,6 +29,8 @@ class MiInterpreterExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_breakpoint_set(self):
         """Test that 'lldb-mi --interpreter' can set breakpoint by 'breakpoint set' command."""
 
@@ -49,6 +51,8 @@ class MiInterpreterExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_settings_set_target_run_args_before(self):
         """Test that 'lldb-mi --interpreter' can set target arguments by 'setting set target.run-args' command before than target was created."""
 
@@ -75,6 +79,8 @@ class MiInterpreterExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_settings_set_target_run_args_after(self):
         """Test that 'lldb-mi --interpreter' can set target arguments by 'setting set target.run-args' command after than target was created."""
 
@@ -101,6 +107,8 @@ class MiInterpreterExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_process_launch(self):
         """Test that 'lldb-mi --interpreter' can launch process by "process launch" command."""
 
@@ -150,6 +158,8 @@ class MiInterpreterExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_thread_step_over(self):
         """Test that 'lldb-mi --interpreter' can step over by "thread step-over" command."""
 
@@ -174,6 +184,8 @@ class MiInterpreterExecTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_thread_continue(self):
         """Test that 'lldb-mi --interpreter' can continue execution by "thread continue" command."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiLaunch.py b/lldb/test/tools/lldb-mi/TestMiLaunch.py
index cd3cd1cfa533..7bdc81922135 100644
--- a/lldb/test/tools/lldb-mi/TestMiLaunch.py
+++ b/lldb/test/tools/lldb-mi/TestMiLaunch.py
@@ -10,6 +10,8 @@ class MiLaunchTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_exe(self):
         """Test that 'lldb-mi --interpreter' works for -file-exec-and-symbols exe."""
 
@@ -25,6 +27,8 @@ class MiLaunchTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_abspathexe(self):
         """Test that 'lldb-mi --interpreter' works for -file-exec-and-symbols fullpath/exe."""
 
@@ -42,6 +46,8 @@ class MiLaunchTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_relpathexe(self):
         """Test that 'lldb-mi --interpreter' works for -file-exec-and-symbols relpath/exe."""
 
@@ -58,6 +64,8 @@ class MiLaunchTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_badpathexe(self):
         """Test that 'lldb-mi --interpreter' works for -file-exec-and-symbols badpath/exe."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiNotification.py b/lldb/test/tools/lldb-mi/TestMiNotification.py
index 583f9e590d56..080621be0ab7 100644
--- a/lldb/test/tools/lldb-mi/TestMiNotification.py
+++ b/lldb/test/tools/lldb-mi/TestMiNotification.py
@@ -12,6 +12,8 @@ class MiNotificationTestCase(lldbmi_testcase.MiTestCaseBase):
     @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
     @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_prompt(self):
         """Test that 'lldb-mi --interpreter' echos '(gdb)' after commands and events."""
 
@@ -131,6 +133,8 @@ class MiNotificationTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_stopped_when_segfault_local(self):
         """Test that 'lldb-mi --interpreter' notifies after it was stopped when segfault occurred (local)."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiStack.py b/lldb/test/tools/lldb-mi/TestMiStack.py
index 70b00ce11c84..5f28eb718465 100644
--- a/lldb/test/tools/lldb-mi/TestMiStack.py
+++ b/lldb/test/tools/lldb-mi/TestMiStack.py
@@ -10,6 +10,8 @@ class MiStackTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_stack_list_arguments(self):
         """Test that 'lldb-mi --interpreter' can shows arguments."""
 
@@ -46,6 +48,8 @@ class MiStackTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_stack_list_locals(self):
         """Test that 'lldb-mi --interpreter' can shows local variables."""
 
@@ -164,6 +168,8 @@ class MiStackTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_stack_info_depth(self):
         """Test that 'lldb-mi --interpreter' can shows depth of the stack."""
 
@@ -186,6 +192,8 @@ class MiStackTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_stack_list_frames(self):
         """Test that 'lldb-mi --interpreter' can lists the frames on the stack."""
 
diff --git a/lldb/test/tools/lldb-mi/TestMiSyntax.py b/lldb/test/tools/lldb-mi/TestMiSyntax.py
index 2d664964ccd5..c2b24677298a 100644
--- a/lldb/test/tools/lldb-mi/TestMiSyntax.py
+++ b/lldb/test/tools/lldb-mi/TestMiSyntax.py
@@ -10,6 +10,8 @@ class MiSyntaxTestCase(lldbmi_testcase.MiTestCaseBase):
 
     @lldbmi_test
     @expectedFailureWindows("llvm.org/pr22274: need a pexpect replacement for windows")
+    @skipIfFreeBSD # llvm.org/pr22411: Failure presumably due to known thread races
+    @skipIfLinux # llvm.org/pr22411: Failure presumably due to known thread races
     def test_lldbmi_tokens(self):
         """Test that 'lldb-mi --interpreter' echos command tokens."""