Andrew Morton <akpm@digeo.com> writes:
> Steven Cole <elenstev@mesatop.com> wrote:
> >
> > I have one machine for testing which is running X, and a kexec reboot
> > glitches the video system when initiated from runlevel 5. Kexec works fine
> > from runlevel 3.
>
> Yes, there are a lot of driver issues with kexec. Device drivers will assume
> that the hardware is in the state which the BIOS left behind.
>
> In this case, the Linus device driver's shutdown functions are obviously not
> leaving the card in a pristine state. A lot of drivers _do_ do this
> correctly. But some don't.
>
> It seems that kexec is really supposed to be invoked from run level 1. ie:
> you run all your system's shutdown scripts before switching. If you'd done
> that then you wouldn't have been running X and all would be well.
>
> do-kexec.sh is for the very impatient ;)
The biggest issue with kexec when you are in X is that nothing
tells X to shutdown. So you have to at least shutdown X manually.
Eric
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This archive was generated by hypermail 2b29 : Wed May 07 2003 - 22:00:26 EST