lxc move errors, tty

[Dustin Kirkland ]

kirkland@masterbr:~⟫ lxc move ophthalmologic-shawanda loft:
error: Error transferring container data: restore failed:
(00.191903) 1: Error (tty.c:1438): tty: No reg_d descriptor for id 0xed
(00.210238) Error (cr-restore.c:1352): 21597 killed by signal 9
(00.252748) Error (cr-restore.c:2182): Restoring FAILED.
1 kirkland@masterbr:~⟫ lxc start ophthalmologic-shawanda
kirkland@masterbr:~⟫ lxc exec ophthalmologic-shawanda bash
root@ophthalmologic-shawanda:~# sudo umount /sys/firmware/efi/efivars
root@ophthalmologic-shawanda:~# exit
exit
kirkland@masterbr:~⟫ lxc move ophthalmologic-shawanda loft:
error: Error transferring container data: restore failed:
(00.164016) 1: Error (tty.c:1438): tty: No reg_d descriptor for id 0xe8
(00.175087) Error (cr-restore.c:1352): 24256 killed by signal 9
(00.241799) Error (cr-restore.c:2182): Restoring FAILED.

Full logs at http://paste.ubuntu.com/16204182/

[Dustin Kirkland  (kirkland)]

Tried to live migrate a lxd container, while an ssh session was open (running top).

Live migration works fine, if I just ping the container, or just have an ssh session with bash only (but the ssh session dies).

[Tycho Andersen (tycho-s)]

On Tue, May 03, 2016 at 04:38:51PM -0000, Dustin Kirkland  wrote:
> Tried to live migrate a lxd container, while an ssh session was open
> (running top).
>
> Live migration works fine, if I just ping the container, or just have an
> ssh session with bash only (but the ssh session dies).

Hmm. You get some socket error when the ssh session dies?

> --
> You received this bug notification because you are a member of Ubuntu
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> Matching subscriptions: criu
> https://bugs.launchpad.net/bugs/1577854
>
> Title:
> lxc move errors, tty
>
> Status in criu package in Ubuntu:
> New
>
> Bug description:
> kirkland@masterbr:~⟫ lxc move ophthalmologic-shawanda loft:
> error: Error transferring container data: restore failed:
> (00.191903) 1: Error (tty.c:1438): tty: No reg_d descriptor for id 0xed
> (00.210238) Error (cr-restore.c:1352): 21597 killed by signal 9
> (00.252748) Error (cr-restore.c:2182): Restoring FAILED.
> 1 kirkland@masterbr:~⟫ lxc start ophthalmologic-shawanda
> kirkland@masterbr:~⟫ lxc exec ophthalmologic-shawanda bash
> root@ophthalmologic-shawanda:~# sudo umount /sys/firmware/efi/efivars
> root@ophthalmologic-shawanda:~# exit
> exit
> kirkland@masterbr:~⟫ lxc move ophthalmologic-shawanda loft:
> error: Error transferring container data: restore failed:
> (00.164016) 1: Error (tty.c:1438): tty: No reg_d descriptor for id 0xe8
> (00.175087) Error (cr-restore.c:1352): 24256 killed by signal 9
> (00.241799) Error (cr-restore.c:2182): Restoring FAILED.
>
>
> Full logs at http://paste.ubuntu.com/16204182/
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/ubuntu/+source/criu/+bug/1577854/+subscriptions

[Tycho Andersen (tycho-s)]

I just saw this without anything interesting running (i.e. no top, etc.). So while top helps, there is some race here that is reproducible independent of top.

[Tycho Andersen (tycho-s)]

https://lists.openvz.org/pipermail/criu/2016-June/thread.html#29676