Re: Oops in get_boot_pages at reboot

[Andrew Morton]

Olof Johansson <olof@xxxxxxxxxxxxxx> wrote:
>
> So __pollwait() calls __get_free_page(), system_running is 0 so
>  get_boot_pages is called. Since get_boot_pages is labeled __init, badness
>  happens.
> 
>  How about checking against mem_init_done instead of system_running? It
>  helps against the oops, but there might be some good reason not to do
>  it. I don't claim to know the intrisic details about the MM. :-)

Do we really need to clear system_running at reboot?  I'd always viewed it
as "everything is initialised and usable", and that's generally true at
reboot time.

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