[PATCH] kdump-error-handler.service: Remove ExecStopPost

[Kairui Song]

Currently "systemctl --fail --no-block default" will be executed on
kdump-error-handler exit due to the config ExecStopPost. This may makes
systemd try to isolate to the default target again, if both
final_action or failure_action failed to terminates the system.

The execute chain will be like:

initrd.target -> kdump.sh (failed) -> kdump-error-handler.service ->
failure_action -> final_action -> ExecStopPost (go to initrd.target again
and loop infinitely)

Currently, reboot/shutdown/halt is guarenteen to be called by either
by executing failure_action or final_action. So the loop will be stopped.
However none of the reboot/shutdown/halt call is blocking so it might
have race issue, and this ExecStopPost config is not useful after all.

Just drop the ExecStopPost to fix this potential issue.
---
 dracut-kdump-error-handler.service | 1 -
 1 file changed, 1 deletion(-)

diff --git a/dracut-kdump-error-handler.service b/dracut-kdump-error-handler.service
index 32b74ab..a23b75e 100644
--- a/dracut-kdump-error-handler.service
+++ b/dracut-kdump-error-handler.service
@@ -21,7 +21,6 @@ Environment=DRACUT_SYSTEMD=1
 Environment=NEWROOT=/sysroot
 WorkingDirectory=/
 ExecStart=/bin/kdump-error-handler.sh
-ExecStopPost=-/usr/bin/systemctl --fail --no-block default
 Type=oneshot
 StandardInput=tty-force
 StandardOutput=inherit
-- 
2.23.0