TCP: Fix occasional deadlock during a restart

liviuchircu · liviuchircu · commit a26565db252b · 2026-04-21T17:31:29.000+03:00
diff --git a/net/net_tcp.c b/net/net_tcp.c
@@ -2188,7 +2188,8 @@ void tcp_destroy(void)
 	}
 
 	if (tcp_write_queue) {
-		cond_destroy(&tcp_write_queue->cond);
+		/* Skip cond teardown during attendant shutdown. */
+		/* cond_destroy(&tcp_write_queue->cond); */
 		shm_free(tcp_write_queue);
 		tcp_write_queue = 0;
 	}

Original file line number	Diff line number	Diff line change
`@@ -2188,7 +2188,8 @@ void tcp_destroy(void)`
`2188`	`2188`	`}`
`2189`	`2189`
`2190`	`2190`	`if (tcp_write_queue) {`
`2191`		`- cond_destroy(&tcp_write_queue->cond);`
	`2191`	`+ /* Skip cond teardown during attendant shutdown. */`
	`2192`	`+ /* cond_destroy(&tcp_write_queue->cond); */`
`2192`	`2193`	`shm_free(tcp_write_queue);`
`2193`	`2194`	`tcp_write_queue = 0;`
`2194`	`2195`	`}`