Use a dedicated reap thread instead of taskq.

The problem is that reaping these things performs some blocking
operations which can tie up slots in the taskq, preventing other
tasks from running.  Ultimately this can lead to a deadlock as
tasks that are blocked wind up waiting for tasks that can't get
scheduled.  Blocking tasks really should not run on the system taskq.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/core/pipe.h b/src/core/pipe.h
index b8f6d90a..40871062 100644
--- a/src/core/pipe.h
+++ b/src/core/pipe.h
@@ -34,7 +34,7 @@ struct nni_pipe {
 	int           p_refcnt;
 	nni_mtx       p_mtx;
 	nni_cv        p_cv;
-	nni_task      p_reap_task;
+	nni_list_node p_reap_node;
 	nni_aio       p_start_aio;
 };