SMP Kernel::Boot Failure-hang at "booting the kernel" [SOLVED]

Joseph M Bironas fedora at
Tue Nov 18 04:43:09 UTC 2003

On Mon, 2003-11-17 at 17:55, Dave Jones wrote:
> Disabling APIC precludes SMP support though.
> (Or is the kernel re-enabling it on boot?).
> We definitly regressed somewhere, but the problem is pinning down where,
> and why.
> 		Dave

I'm not sure. I know that I'm getting two processors to boot now. Top
reports both processors, and I get two little penguins on FB boot
-always an important indicator.

I found this bug reported and commented on by you and others several
times over. It looks like a known issue at this point. If there's
anything I can do to help debug/test, let me know. 

It might be worth inclusion in the Unofficial FAQ that a couple of
possible workarounds are to disable APIC in the BIOS or add "apic=force"
to the kernel boot params (from another bugzilla comment).


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