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...h +++ b/server/internal.h @@ -92,6 +92,7 @@ extern bool no_sr; extern const char *port; extern bool readonly; extern const char *run; +extern bool listen_stdin; extern const char *selinux_label; extern int threads; extern int tls; diff --git a/server/connections.c b/server/connections.c index c173df8d..0184afea 100644 --- a/server/connections.c +++ b/server/connections.c @@ -366,6 +366,18 @@ free_connection (struct connection *conn) threadlocal_set_conn (NULL); conn->close (conn); + if (listen_stdin) { + int fd; + + /* Restore something to stdin/out so the rest of our code can +...

We noticed while writing various libnbd tests that when the delay filter is in use, there are scenarios where we had to resort to SIGKILL to get rid of nbdkit, because it was non-responsive to SIGINT. I'm still trying to figure out the best way to add testsuite coverage of this, but already proved to myself that it works from the command line, under two scenarios that both used to cause long