Re: 3.0-rc1: powerpc hangs at Kernel virtual memory layout

From: Benjamin Herrenschmidt
Date: Tue May 31 2011 - 23:49:24 EST


On Tue, 2011-05-31 at 20:02 -0700, Christian Kujau wrote:
> (Cc'in Linus)
>
> On Tue, 31 May 2011 at 17:48, Christian Kujau wrote:
> > In the meantime, "git bisect" behaves kinda weird, I don't know what went
> > wrong here:
> >
> > $ git bisect start
> > $ git bisect good # Linux 2.6.39
> > $ git bisect bad v3.0-rc1 # Linux 3.0-rc1
> > $ git bisect bad # c44dead70a...
> > $ git bisect bad # d93515611b..
> >
> > ...yet the ./Makefile shows[0] that I'm already way behind: 2.6.39-rc2.
> > Maybe "git bisect" got confused with that whole 2.6.x -> 3.0 renaming?
>
> Hm, I tried again, from a clean v3.0-rc1 (git reset --hard), but after the
> 2nd "git bad" I'm at 2.6.39-rc2 again - while I /should/ be somwhere
> inbetween v2.6.39..v3.0-rc1, right?

Kernel version is totally irrelevant when bisecting. You are not walking
through a linear series of patches but a complex tree of merges which
might have forked off different versions in the first place.

Cheers,
Ben.


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