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Fix docker restart panic on machine ungracefully shutdown

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Machine ungracefully shutdown leaves a lot of container has a
Running=true state.

```
$ cat config.v2.json | jq .

    "Running": true,
    "Paused": false,
    "Restarting": false,

```

And the next docker start will fail with panic.

```

time="2016-12-01T01:54:45.086446715-05:00" level=warning msg="libcontainerd: client is out of sync, restore was called on a fully synced container (49f41ad5ca0be860622d9190673b5816d012022fb2c1794560ec4851e7cfec6a)."
time="2016-12-01T01:54:45.087046004-05:00" level=warning msg="libcontainerd: failed to retrieve container 49f41ad5ca0be860622d9190673b5816d012022fb2c1794560ec4851e7cfec6a state: rpc error: code = 2 desc = containerd: container not found"
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x8 pc=0x5db7f3]

goroutine 57 [running]:
panic(0x16a8e60, 0xc420010130)
        /usr/local/go/src/runtime/panic.go:500 +0x1a1
github.com/docker/docker/libcontainerd.(*client).Restore(0xc4202e1a40, 0xc420415000, 0x40, 0xc42015a0b0, 0x0, 0x0, 0x0, 0x0, 0x0)
        /go/src/github.com/docker/docker/libcontainerd/client_linux.go:457 +0x553
github.com/docker/docker/daemon.(*Daemon).restore.func1(0xc4201c46f0, 0xc4202581e0, 0xc4201c46e8, 0xc42047bfb0, 0xc42047bf80, 0xc42047bf50, 0xc42024ba10, 0xc420512c00)
        /go/src/github.com/docker/docker/daemon/daemon.go:205 +0x198
created by github.com/docker/docker/daemon.(*Daemon).restore
        /go/src/github.com/docker/docker/daemon/daemon.go:260 +0x7bb

```

Signed-off-by: Lei Jitang <leijitang@huawei.com>
This commit is contained in:
Lei Jitang 2016-12-01 02:25:24 -05:00
parent 457d562af1
commit 267422e4d0
1 changed files with 1 additions and 1 deletions
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2
libcontainerd/client_linux.go
View file

@ -454,7 +454,7 @@ func (clnt *client) Restore(containerID string, attachStdio StdioCallback, optio
if err != nil {
logrus.Warnf("libcontainerd: failed to retrieve container %s state: %v", containerID, err)
}
if ev != nil && ev.Pid != InitFriendlyName || ev.Type != StateExit {
if ev != nil && (ev.Pid != InitFriendlyName || ev.Type != StateExit) {
// Wait a while for the exit event
timeout := time.NewTimer(10 * time.Second)
tick := time.NewTicker(100 * time.Millisecond)