[libvirt] [PATCH] lxc: Bind mount container TTYs

[Martin Kletzander]

On Sun, Jun 28, 2015 at 09:46:43AM +0200, Richard Weinberger wrote:
>Am 26.06.2015 um 15:09 schrieb Martin Kletzander:
>> On Tue, Jun 23, 2015 at 04:38:57PM +0200, Richard Weinberger wrote:
>>> Instead of creating symlinks, bind mount the devices to
>>> /dev/pts/XY.
>>> Using bind mounts it is no longer needed to add pts devices
>>> to files like /dev/securetty.
>>>
>>
>> I guess you meant /etc/securetty.
>
>Lol, yes. :-)
>
>> This patch makes sense, but if I start a container that I couldn't
>> login as a root into (because of securetty), it still doesn't help, I
>> still can't login.  Moreover, if I stop it and start it few times and
>> restart the daemon (I'm not sure whether that's needed, it's just that
>> I had to switch between gdb and non-gdb daemons and it happened only
>> sometimes), I get this:
>>
>>  error: internal error: guest failed to start: unexpected exit status 125
>>
>> The error in log is:
>>
>>  libvirt:  error : failed to setup stdout file handle: Bad file descriptor
>>
>> I briefly looked at it and *cmd->outfdptr has the value of 247083264
>> which is nowhere in the output of lsof for that process.  I know that
>> it doesn't sounds even remotely related, but without this patch that
>> doesn't happen.  Maybe it just uncovers some error rotting there for a
>> long time...
>
>Hmm, very strange. What guest container are you using?
>I tried with a Debian jessi and had user namespace enabled.
>

Sorry for the late reply.  I used simple one.  Only gentoo's stage 3
unpacked into a directory, no special settings used for it.  Removing
/etc/securetty works for me.  I'll give it another try, but probably
after the freeze.  If anyone else wants to review this, don't get
stopped by the problems I'm having!

>Thanks,
>//richard
>
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