[uml-devel] wall on shutdown

[uml-devel] wall on shutdown

[Sven 'Darkman' Michels]

Hi there,

i've got a small problem here:
i'll use mconsoles cad feature to shutdown my uml. It works mostly like
it should. But sometimes the shutdown doesn't send the well known wall
msg. I tried multiple kernel configs etc., but it seems to be a race
condition. 2 times it worked, 3-4-5-6 time it doesn't work. The UML
simply goes down (clean shutdown, all ok execpt the missing wall).
Now i added a echo bla | wall; shutdown to the inittab, that 'works'
but isn't very beautiful ;)

Someone knows about this issue? I use debian (testing on the host,
stable inside the uml, also tested with the image from the page,
same problem) and kernel 2.4.24 (host), 2.4.24 with 2.4.23-2um patch.

Regards,
Sven



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[uml-devel] Re: [uml-user] wall on shutdown

[Jeff Dike]

sven@darkman.de said:
> But sometimes the shutdown doesn't send the well known wall msg. I
> tried multiple kernel configs etc., but it seems to be a race
> condition. 2 times it worked, 3-4-5-6 time it doesn't work. The UML
> simply goes down (clean shutdown, all ok execpt the missing wall). Now
> i added a echo bla | wall; shutdown to the inittab, that 'works' but
> isn't very beautiful ;)

This sounds like a userspace problem.  Does wall (or shutdown) have any delays
in it which sleep long enough for UML to shut down?

				Jeff



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