Try to fix regression failures.

pageserver/src/pgdatadir_mapping.rs

@@ -490,7 +490,7 @@ impl Timeline {
         ctx: &TimelineRequestContext,
     ) -> Result<u64, PageReconstructError> {
         // Fetch list of database dirs and iterate them
-        let buf = self.get(DBDIR_KEY, lsn, ctx).await.context("read dbdir")?;
+        let buf = self.get(DBDIR_KEY, lsn, ctx).await?;
         let dbdir = DbDirectory::des(&buf).context("deserialize db directory")?;
 
         let mut total_size: u64 = 0;

test_runner/fixtures/neon_fixtures.py

@@ -1945,6 +1945,7 @@ class NeonPageserver(PgProtocol):
             # Tenant::delete_timeline() can cause any of the four following errors.
             # FIXME: we shouldn't be considering it an error: https://github.com/neondatabase/neon/issues/2946
             ".*could not flush frozen layer.*queue is in state Stopped",  # when schedule layer upload fails because queued got closed before compaction got killed
+            ".*Compaction failed, .* queue is in state Stopped.*", # similarly for compaction
             ".*wait for layer upload ops to complete.*",  # .*Caused by:.*wait_completion aborted because upload queue was stopped
             ".*gc_loop.*Gc failed, retrying in.*timeline is Stopping",  # When gc checks timeline state after acquiring layer_removal_cs
             ".*compaction_loop.*Compaction failed, retrying in.*timeline is Stopping",  # When compaction checks timeline state after acquiring layer_removal_cs