On Thursday 06 December 2007 20:44:46 Chuck Ebbert wrote:
> pages is NULL here, implying vma->vm_private_data was NULL. This is apparently
> because init_vdso_vars() is __initcall and runs after the rootfs gets populated.
> An experimental initrd containing an /sbin/hotplug binary caused this. Normally
> we don't have that file in the initrd. Should vdso init be done earlier to prevent
> this problem?
We've often had bugs like this. Sure it could be fixed here, but then
the next bug would crop up again later I bet.
It would be better to move the first user space code execution later I think.
I guess the hotplug events could be delayed or initrd just mounted later.
Running any user space before __initcall() has finished is just wrong.
-Andi
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