diff --git a/.github/workflows/ci-amdsharktank.yml b/.github/workflows/ci-amdsharktank.yml
index 1c2b59a6992..c3681cf84fd 100644
--- a/.github/workflows/ci-amdsharktank.yml
+++ b/.github/workflows/ci-amdsharktank.yml
@@ -106,7 +106,6 @@ jobs:
     name: Coverage
     runs-on: ubuntu-24.04
     needs: test
-    if: github.event.pull_request.number != 2677  # Skip for large PR that exceeds GitHub's 300-file diff limit
     permissions:
       pull-requests: write
       contents: write
@@ -289,7 +288,7 @@ jobs:
 
   # Depends on other jobs to provide an aggregate job status.
   # TODO(#584): move test_with_data and test_integration to a pkgci integration test workflow?
-  ci_amdsharktank_summary: # TODO: rename to ci_amdsharktank_summary
+  ci_amdsharktank_summary:
     if: always()
     runs-on: ubuntu-24.04
     needs:
diff --git a/.github/workflows/ci-amdsharktuner.yml b/.github/workflows/ci-amdsharktuner.yml
index fd804695961..9f4f66d5f77 100644
--- a/.github/workflows/ci-amdsharktuner.yml
+++ b/.github/workflows/ci-amdsharktuner.yml
@@ -96,7 +96,6 @@ jobs:
     name: Coverage
     runs-on: ubuntu-24.04
     needs: test
-    if: github.event.pull_request.number != 2677  # Skip for large PR that exceeds GitHub's 300-file diff limit
     permissions:
       pull-requests: write
       contents: write
diff --git a/shortfin/tests/host_cpu_system_test.py b/shortfin/tests/host_cpu_system_test.py
index 346e5243eed..bd45f6e6191 100644
--- a/shortfin/tests/host_cpu_system_test.py
+++ b/shortfin/tests/host_cpu_system_test.py
@@ -20,8 +20,8 @@ def test_create_host_cpu_system_defaults():
         assert len(ls.devices) > 0
 
 
-@pytest.mark.skip(
-    reason="IREE UNIMPLEMENTED: threadless donate-only executor mode not yet implemented with hostcpu_topology_max_group_count=2"
+@pytest.mark.skipif(
+    sys.platform == "win32", reason="Windows fatal exception: access violation"
 )
 def test_create_host_cpu_system_topology_nodes_all():
     sc = sf.host.CPUSystemBuilder(