SOLVED [Was: backporting BFS to 2.6.27]

[Jayson King]

Jayson King wrote:
> The kernel compiles, but it panics:
>
> Kernel alive
> Kernel really alive
> PANIC: early exception 0e rip 10:ffffffff810ad10b error 0 cr2 18.
>
> There's no stack trace but that address is in __kmalloc.

I enabled earlyprintk=vga in boot options and got a stack trace, which 
pointed to a kmalloc call in sched_init. It turns out that this is a 
no-no in 2.6.27 as page_alloc is not set up. Replacing the call with 
alloc_bootmem instead allows the kernel to boot.

I will wrap up a new patch and post it in a bit.

Jayson

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