Re: Linux 2.6.23-rc4, maxcpus=1 regression

From: Linus Torvalds
Date: Wed Aug 29 2007 - 00:03:50 EST




On Wed, 29 Aug 2007, Ingo Molnar wrote:
>
> maxcpus=1 fails to boot on my T60 laptop, it hangs in early bootup
> (right after setting up the local APICs). I bisected it down to this
> recent commit:
>
> | commit 61ec7567db103d537329b0db9a887db570431ff4
> | Author: Len Brown <len.brown@xxxxxxxxx>
> | Date: Thu Aug 16 03:34:22 2007 -0400
> |
> | ACPI: boot correctly with "nosmp" or "maxcpus=0"
>
> reverting that commit makes the system boot again. I've attached the
> .config.

Did you try -rc4? Commit 813409771731d80e6fa94199adf99f2269a4afc0 in
particular ("fix maxcpus=N parsing") was supposed to fix that commit.

Linus
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