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authorNicolas Lacasse <nlacasse@google.com>2018-07-12 13:36:01 -0700
committerShentubot <shentubot@google.com>2018-07-12 13:36:57 -0700
commit67507bd579a305e5d993c7cca71b665f33f341ff (patch)
tree7dd1a20dcefb11cdb19afcff44afc4538ffa8ce9 /runsc/boot
parent41e0b977e5ffc667750c0f706bb70173c5de2161 (diff)
runsc: Don't close the control server in a defer.
Closing the control server will block until all open requests have completed. If a control server method panics, we end up stuck because the defer'd Destroy function will never return. PiperOrigin-RevId: 204354676 Change-Id: I6bb1d84b31242d7c3f20d5334b1c966bd6a61dbf
Diffstat (limited to 'runsc/boot')
-rw-r--r--runsc/boot/loader.go5
1 files changed, 4 insertions, 1 deletions
diff --git a/runsc/boot/loader.go b/runsc/boot/loader.go
index a3cc0e4a4..7de0a84cc 100644
--- a/runsc/boot/loader.go
+++ b/runsc/boot/loader.go
@@ -347,9 +347,12 @@ func newProcess(spec *specs.Spec, conf *Config, ioFDs []int, console bool, creds
}
// Destroy cleans up all resources used by the loader.
+//
+// Note that this will block until all open control server connections have
+// been closed. For that reason, this should NOT be called in a defer, because
+// a panic in a control server rpc would then hang forever.
func (l *Loader) Destroy() {
if l.ctrl != nil {
- // Shut down control server.
l.ctrl.srv.Stop()
}
l.stopSignalForwarding()