[CRIU] [PATCH] zdtm: fallback to mknod(/dev/ptmx) when CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set

[Filipe Brandenburger]

Hi Andrey,

On Wed, Aug 27, 2014 at 12:59 AM, Andrew Vagin <avagin at parallels.com> wrote:
>>               if (mount("pts", "/dev/pts", "devpts", MS_MGC_VAL, "mode=666,ptmxmode=666,newinstance")) {
>
> It's strange, that mount with newinstance doesn't fail, if
> CONFIG_DEVPTS_MULTIPLE_INSTANCES

It doesn't fail... I get this message "devpts: called with bogus
options" in dmesg but the mount works and I get the global devpts
inside the namespace.

The zdtm tests for pty/tty do not work but the other ns/* tests work
fine as otherwise they would fail around here bind mounting ptmx on
top of itself...

Thanks for the quick review!

Cheers,
Filipe