From 96ebac646d565ca8af0198f53c60b31d0f82fe94 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Thu, 11 Aug 2022 19:14:22 +0200
Subject: [PATCH] Ensure disk buffer refills happen in the right thread

---
 libs/ardour/disk_reader.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libs/ardour/disk_reader.cc b/libs/ardour/disk_reader.cc
index a0b52a40b0..b102cb7bfd 100644
--- a/libs/ardour/disk_reader.cc
+++ b/libs/ardour/disk_reader.cc
@@ -1158,6 +1158,8 @@ DiskReader::refill_audio (Sample* sum_buffer, Sample* mixdown_buffer, float* gai
 		return 0;
 	}
 
+	assert (0 == strcmp ("butler", pthread_name ()) || _session.exporting ());
+
 	int32_t                        ret = 0;
 	samplecnt_t                    zero_fill;
 	uint32_t                       chan_n;