X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=3cb970c06e21c62c50b42a2e7466ead067a493f9;hp=f82f05e00b12d3521649ba6f6d2b9b0003c25c92;hb=ab08a675ad07e246b49e7a00927dfd13c1e58ce4;hpb=61076f74f9e7ae286fe140d82ed0ac86895e3690

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index f82f05e00..3cb970c06 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1166,8 +1166,10 @@ static void *thread_manage_apps(void *data)
 						/*
 						 * We just need here to monitor the close of the UST
 						 * socket and poll set monitor those by default.
+						 * Listen on POLLIN (even if we never expect any
+						 * data) to ensure that hangup wakes us.
 						 */
-						ret = lttng_poll_add(&events, ust_cmd.sock, 0);
+						ret = lttng_poll_add(&events, ust_cmd.sock, LPOLLIN);
 						if (ret < 0) {
 							goto error;
 						}