X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Fmain.c;h=922e81b594817b365fcffa3d8f3f1ed2adfb750f;hb=a9ade9664f81a422c669f7a043c10479bb82ff42;hp=1fc875576dd0a4ebd28ef715e2b1313f6db95522;hpb=88f2b785b937a5c2af4e21e925b6242ea6c8362b;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/main.c b/src/bin/lttng-sessiond/main.c
index 1fc875576..922e81b59 100644
--- a/src/bin/lttng-sessiond/main.c
+++ b/src/bin/lttng-sessiond/main.c
@@ -1174,8 +1174,10 @@ 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;
 						}