57 lines
2.2 KiB
Diff
57 lines
2.2 KiB
Diff
From e330568504ec379ea42460d21a2e20b1652d9445 Mon Sep 17 00:00:00 2001
|
|
From: Reid Wahl <nrwahl@protonmail.com>
|
|
Date: Fri, 14 Jan 2022 01:35:35 -0800
|
|
Subject: [PATCH] Fix: fencing: Don't set stonith action to pending if fork
|
|
fails
|
|
|
|
Currently, we set a stonith action to pending if
|
|
services_action_async_fork_notify() returns true. However, "true" means
|
|
that the svc_action should not be freed. This might be because the
|
|
svc_action forked successfully and is pending, or it might be because
|
|
the svc_action has already been freed.
|
|
|
|
In the case of stonith actions, if we fail to fork, the stonith_action_t
|
|
object stored in svc_action->cb_data gets freed by the done callback,
|
|
and services_action_async_fork_notify() returns true. If we try to set
|
|
the action to pending, it causes a segfault.
|
|
|
|
This commit moves the "set to pending" step to the
|
|
stonith_action_async_forked() callback. We avoid the segfault and only
|
|
set it to pending if it's actually pending.
|
|
|
|
A slight difference in ordering was required to achieve this. Now, the
|
|
action gets set to pending immediately before being added to the
|
|
mainloop, instead of immediately after.
|
|
|
|
Signed-off-by: Reid Wahl <nrwahl@protonmail.com>
|
|
---
|
|
lib/fencing/st_actions.c | 5 +++--
|
|
1 file changed, 3 insertions(+), 2 deletions(-)
|
|
|
|
diff --git a/lib/fencing/st_actions.c b/lib/fencing/st_actions.c
|
|
index e4e43225cd..306001af69 100644
|
|
--- a/lib/fencing/st_actions.c
|
|
+++ b/lib/fencing/st_actions.c
|
|
@@ -550,6 +550,9 @@ stonith_action_async_forked(svc_action_t *svc_action)
|
|
(action->fork_cb) (svc_action->pid, action->userdata);
|
|
}
|
|
|
|
+ pcmk__set_result(&(action->result), PCMK_OCF_UNKNOWN, PCMK_EXEC_PENDING,
|
|
+ NULL);
|
|
+
|
|
crm_trace("Child process %d performing action '%s' successfully forked",
|
|
action->pid, action->action);
|
|
}
|
|
@@ -619,8 +622,6 @@ internal_stonith_action_execute(stonith_action_t * action)
|
|
if (services_action_async_fork_notify(svc_action,
|
|
&stonith_action_async_done,
|
|
&stonith_action_async_forked)) {
|
|
- pcmk__set_result(&(action->result), PCMK_OCF_UNKNOWN,
|
|
- PCMK_EXEC_PENDING, NULL);
|
|
return pcmk_ok;
|
|
}
|
|
|
|
--
|
|
2.27.0
|
|
|