Re: virtio support
Ritesh Raj Sarraf, on Tue 09 Feb 2016 18:47:36 +0530, wrote:
> On Tue, 2016-02-09 at 13:55 +0100, Samuel Thibault wrote:
> > Could somebody take the time to add to gnumach an emergency shortcut
> > which triggers the shutdown? I'm really surprised nobody thought
> > about
> > it.
>
> Just curious about how this is supposed to be done.
Simply the normal shutdown procedure: notifying the startup process that
it should notify the filesystem processes, which make the filesystems
read-only, write what's pending, and then we can reboot with not too
much harm.
Another way is to use reboot-hurd instead of reboot. But one may not
even have access to a prompt to type it, thus having a keyboard shortcut
that works all the time.
> On Linux, for processes which are blocked (maybe of CPU) are in Deep
> Uninterruptible State. A state that even the Linux kernel is often not
> able to kill the process, if in.
There are little cases where that happens, concerning mach, since most
of posix is implemented in userland.
Samuel
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